Breastfeeding and return of fertility in natural family planning studies

During the postpartum period of time, fertility is in a unique state. For those fully breastfeeding, it may be months or years before they begin ovulating again regularly and with fertile cycles. This article talks about some of the data we have on what return of fertility looks like. This information may be of particular interest to those charting with a method of natural family planning or fertility awareness. Charting at this time may be difficult, and for highest efficacy should be done closely with a certified natural family planning educator.

Breastfeeding as Birth Control

Breastfeeding has been shown over numerous studies to have an effect on return to fertility and ovulation. Kennedy et al (1989) reviewed 10 studies from multiple countries to come to a consensus on what full-breastfeeding means.

  • Fully breastfeeding or at least partially fully breastfeeding
  • Fully breastfeeding meaning the infant gets all or as close to all as possible of their nutrition by suckling at the breast directly, no bottles or pumping
  • Small bites of regular food or water do not disqualify for full breastfeeding
  • No bleeding past day 56 postpartum until the 6 month mark postpartum.

Some methods suggest going no longer than 6 hours at night without breastfeeding. While this was not mentioned in the study, it is generally used as the standard in fertility awareness based methods to see if someone qualifies to rely on the lactational amenorrhea method (LAM).

LAM is 98% effective for avoiding pregnancy when all criteria is met up until 6 months postpartum. After that, efficacy drops precipitously.

What about ecological breastfeeding?

Ecological breastfeeding requires even stricter criteria and may delay fertility for much longer. Bleeding past day 56 does not disqualify someone for ecological breastfeeding. Ecological breastfeeding should not be confused with LAM! Ecological breastfeeding was coined by Dr. Sheila Kippley. You can buy her book here.

The criteria include:

  • Breastfeed exclusively for 6 months
  • Pacify your baby at your breast
  • No bottles or pacifiers
  • Sleep with your baby for night feedings
  • Sleep with your baby for a daily-nap feeding
  • Nurse frequently day & night. Avoid schedules.
  • Avoid anything that would separate you from your baby / prevent regular nursing

Symptothermal Method Studies on Breastfeeding

For the first part of this overview, I am going to cover a few symptothermal studies that followed breastfeeders from birth to return of fertility. Symptothermal charters record cervical mucus and basal body temperature daily in order to track their fertility and determine when the fertile window is opened and when it is closed.

In “Breastfeeding and the Symptothermal Method,” Kennedy et al. followed 73 women who charted with a symptothermal method in Australia, Canada, England. While this is a small sample size, the team collected a ton of data: 22,538 diary sheets, 9,428 urinary vials to measure hormones, and 1,600 follow-ups with the women (Kennedy 1995).

Kennedy et al. reported the following data regarding the wait to return of fertility:

  • Only 25% of first ovulations postpartum had “adequate luteinization.” This means over three quarters of first ovulations were likely infertile (Kennedy, 110).
  • In retrospect, up to 51% of possibly fertile days identified by sympto-thermal would not have lead to conception (Kennedy, 112). The study standard for this was 5 day sperm life.
  • They found that 94-99% of the time, the sympto-thermal method correctly identified when a day was really infertile. This means that around 1-6% of the time it didn’t identify a day that may have lead to pregnancy (Kennedy, 112).
  • They recorded four adequate ovulations with those fully breastfeeding for their first ovulation. This was defined as a 10 day or greater luteal phase with adequate progesterone levels. (Kennedy, 112).
  • Abstinence was expected per the rules for about 50% of the charted days included in the study (Kennedy, 113).

Bonus Information for Cervical Mucus Fans: Fertile mucus in this study was considered anything cloudy, opague, clear, translucent, stretchy, strands, wet, lubricative, moist, or unusually abundant.

Zinaman and Stevenson in the USA followed 25 women until they had 3 ovulatory cycles postpartum (1991).

They found the following data regarding return to fertility:

  • 20% of ovulations in the first ovulation postpartum during the first 6 months were considered fertile (ie a luteal phase longer than 10 days) (Zinaman and Stevenson, 2037).
  • Basal body temperature appeared inadequate to capture the first ovulation, occurring up to 4 days after the LH peak, but it improved in later cycles (Zinaman and Stevenson, 2037).
PercentageTime to Return of Fertility From Birth
25%Less than 200 days 
25%200 to 300 days
35%301 to 400 days
15%More than 400 days
Time to return of fertility among 25 breastfeeding women in Washington, DC. Created from page 2037 in Zinaman and Steveson (1991).

In an article in the International Review of Natural Family Planning, Parenteau-Carreau presents data collected from 43 postpartum women charting with the Serena Canada method.

Parentau-Carreau reports the following data on postpartum charting:

  • 65% of first bleeds were preceded by a thermal shift (35).
  • The collection of charts confirmed the theory that 4 high temperatures should be used postpartum, as there were instances of 3 raised temperatures that were not true shifts (36).
  • Among temperature shifts during the first 6 months postpartum, 75% lasted 8 days or more (37).
  • For babies who sucked their thumb or used a pacifier regularly, their mothers experienced return of fertility an average of 13 days earlier than those who only breastfed for soothing purposes (37).
  • The basal body temperature curve tended to become more steady or regular in the one to two weeks prior to the first ovulation (38).

What can we conclude from all this data?

  • Breastfeeding and meeting the criteria for LAM is highly effective for avoiding pregnancy in the first 6 months postpartum.
  • Most first ovulations postpartum are infertile (defined as a luteal phase less than 10 days long).
  • It is possible to chart during postpartum to avoid pregnancy.

What methods work best postpartum?

I recommend practicing either the Billings Ovulation Method or Marquette postpartum. I do not recommend sympto-thermal method because temperatures are not useful until fertility returns. I only recommend taking your temperature before the 6 month mark to those who are not breastfeeding. In addition, the sympto-thermal method offers less complex mucus patterns than Billings does.

Billings Ovulation Method involves charting sensation at the vulva and appearance of mucus to create a basic infertile pattern. It allows only alternate evenings of the basic infertile pattern for sex until return of fertility (IE ovulation) occurs. It is approximately 98% effective with correct use postpartum.

  • Subjective fertility signs (sensation and appearance)
  • Only alternate evenings for sex
  • Very affordable (Billings will work to set you up with a free instructor if you absolutely cannot afford one)
  • No re-occurring cost
  • One-time cost for instruction (ideally, please pay your educator if you can! Some instructors may charge after 1-2 years pass)

Marquette Method involves charting urinary hormones using the Clearblue monitor. This monitor reads estrogen and LH levels. This method is going to be more expensive than a cervical mucus only method, so I only recommend it to those who can afford approximately $30 USD a month or more postpartum. Unfortunately, the stick costs fluctuate up to $50 USD or so for 30 sticks, but I have seen them as low as $30 USD. Marquette is approximately 98% effective with correct use.

  • Objective fertility signs (monitor does the reading for you)
  • Any time of day sex when available
  • Expensive by some standards. Sticks cost twice as much in Europe. May not be available in some countries at all.
  • Re-occurring cost
  • One-time cost of the monitor ($50-$130 USD depending on if buying new or used)
  • One-time cost of instruction (unless you go over the year mark, you may need to pay twice)
  • I have heard that some instructors may offer scholarships, but you would need to contact individual instructors or organizations to learn their policies.

References

Kennedy, K; Rivera, R; McNeilly, A. (1989). Consensus statement on the use of breastfeeding as a family planning method. , 39(5), 0–496. doi:10.1016/0010-7824(89)90103-0 

Kennedy, K., Gross, B., Parenteau-Carreau, S., Flynn, A., Brown, J., & Visness, C. (1995). “Breastfeeding and the Symptothermal Method.” Studies in Family Planning, 26(2), 107-115. doi:10.2307/2137936

Parenteau-Carreau, S. (1984). “The Return of Fertility in Breastfeeding Women.” The International Review of Natural Family Planning. Vol. 8(1). pp. 34-38.

Zinaman, Michael; Stevenson, Wilma (1991). Efficacy of the symptothermal method of natural family planning in lactating women after the return of menses. American Journal of Obstetrics and Gynecology, 165(6), 2037–2039. doi:10.1016/S0002-9378(11)90575-4 

My Experience Becoming a Certified Billings Ovulation Method Teacher

I recently completed my teaching certification for the Billings Ovulation Method through the Billings Ovulation Method Association in the USA (BOMA). This is a cervical mucus / sensation only method that has been taught for over fifty years in over 120 countries.

I began this certification having been quite dissatisfied with my previous certification in the sympto-thermal method. I found the sympto-thermal method inadequate for irregular cycles or postpartum cycles, as well as for any cycles with continous mucus.

This certification 100% cleared up all doubts I had about being able to teach people in these situations! I love that Billing’s motto is “Keep it simple.” Ultimately, this certification gave me the confidence to give up temperature taking as a part of my fertility awareness routine.

First Step:

Before beginning the certification, I took an introductory class with my spouse in the method. This gave me about 6 months to try to apply the principles to my charts before beginning training. I had previously certified in a “Billings-based method” but learned quickly that authentic Billings is a different creature altogether.

I recommend that anyone who is going to train in this method learn to practice it first for at least 6 to 12 cycles under the guidance of an accredited teacher. Joining this program without learning the method first is going to leave you lost on your charts – when you should be confident in your charts before helping others.

Second Step:

The class began in December 2019 and ran through September 2020. We met once a month for approximately an hour (sometimes a little more or less). Inbetween meetings, we were expected to read one to two chapters of material and complete 5 or more worksheets that included chart evaluation and quizzes.

I really appreciated the live classes because my previous certification had no live component. I’m a strong believer that synchronous connection is really important for learning something new.

During class, we were shown PowerPoints and given time to ask questions about the homework. Hearing from long-term accredited teachers about different charting circumstances did wonders for my existing knowledge base. It was incredibly valuable.

Full disclosure: It is important to know that Billings was founded by and is primarily run by Catholics. These meetings often began with prayer or referenced God. Teachers are not required to teach the religious component of the PowerPoint. That means that Billings can be presented in a secular manner. The WOOMB International head organization notably does not include religious elements in their presentation of the method. The science of the method is solid regardless of any ideology attached to it.

Third Step:

The next step after passing an exam on the material was to begin practicum. Practicum is the supervised portion of the certification where you teach 6 to 10 clients minimum in the method while submitting charts and questios to a supervisor selected for you by the organization.

This graphic is how long it took me to finish the practicum portion of the course. Most people take 1.5 to 2 years to finish the program. I went a little faster because I taught larger group classes and had clients lined up before it began.

Practicum was the most enriching part of the experience, and I recommend that anyone who does the training utilize this time to your best advantage. I learned how to help people identify complex basic infertile patterns where they never have dry days. This was not possible in my previous method. I was able to support multiple postpartum women as well as folks with PCOS or who were trying to conceive. I learned so much by meeting with my clients and sending charts to my supervisor.

The follow-ups and classes in Billings are mandatory live meetings (video calling, phone call, or in-person). The follow-ups generally last 15 to 30 minutes depending on the client and how early they are in the process. Follow-ups and classes are required to be live, and this is based on what was done to reach efficacy in the Billings studies. We generally meet with clients seven or more times in the first 6 months, and then every 1 to 3 months. Some people may have more or less follow-ups depending on when they reach autonomy and things like cycle characteristics (postpartum people tend to meet up until the third ovulatory cycle after return of fertility.)

Fourth step:

After having enough clients in different situations (postpartum, trying to conceive, trying to avoid, regular and irregular cycles), I had a final meeting with my supervisor. Before this, I had to compile a document of every client chart. This was a bit laborious as the Billings charts cannot be exported to PDF without losing part of the chart. I had to screenshot segments of the charts and then re-assemble them. This meeting with my supervisor lasted about two hours, and we discussed all of my client charts and any corrections that needed to be made.

Following that, I was recommended for the final step. I recieved a mailed in exam that involved correcting a full paper chart and writing why I made those changes and what mistakes were originally made.

I turned in this exam to two graders. They then met with me and discussed the chart and any necessary corrections. They approved my certification at the end of the meeting.

The Future

Billings Ovulation Method teachers are required to do continuing education to maintain their certification. This is an investment of approximately $300 to $600 every three years. While this is costly, it is really important to attend further training where the teacher can see more advanced charting techniques and learn about health conditions, efficacy, and more!

My Final Thoughts

I would recommend this certification program to anyone who is interested in having an in-depth understanding of cervical mucus charting. The Billings Method teaches about things like the “pockets of shaw” and the cervical mucus crypts. My previous certification did not include close study of the patterns of cervical mucus. This program fundamentally changed my thinking about temperatures always being a necessary part of charting. I ended up dropping temperatures completely after 3 years of using basal body temperature.

Billings allows teachers to order all supplies, including digital materials, for clients. This means I do not have to produce my own materials, and it is super useful for quickly mailing clients what they need.

To make the most of out of this program, I recommend also reading the scientific studies on the side. Unfortunately, the program did not go into a lot of depth on the previous research studies. As someone in academia, I really like understanding all the different correct use and typical use statistics. I’m often questioned about efficacy, and I want to be able to answer people’s questions. If this also describes you, I recommend the following articles:

The Discovery of the Different Types of Cervical Mucus

Use-effectiveness and client satisfaction in six centers teaching the Billings Ovulation Method.

Field trial of billings ovulation method of natural family planning.

A prospective multicentre trial of the ovulation method of natural family planning

A Trial of the Ovulation Method of Family Planning In Tonga

A Response: In Defense of Truth in the Science of the Billings Ovulation Method

Misrepresentation of contraceptive effectiveness rates for fertility awareness methods of family planning

Fertility Awareness For Partners – Common Questions and Answers

This article is for the husbands, boyfriends, spouses, or sexual partners of anyone using a form of fertility awareness for pregnancy prevention.

Charting cycles for pregnancy prevention is a big life change, especially for the female charter. While the charter has to learn to interpret their cycles, it is fundamental that they have a supportive partner in the process.

So, What is Fertility Awareness?

Fertility awareness involves tracking one or more bio-markers of the female cycle. These bio-markers include: cervical mucus, basal body temperature, cervical position, urinary hormones, and cycle start dates. The bio-markers are used to draw a fertile window. Fertility awareness has been studied scientifically for nearly a hundred years. There are a plethora of studies on the topic. Click here to read the 2018 Overview of FABMs. In general, you can expect approximately 98 to 99% efficacy across all modern fertility awareness methods.

Your partner will be tracking based on whatever method she chooses. A method is a way of categorizing bio-markers. For example, I teach the Billings Ovulation Method. This method tracks the bio-marker cervical mucus along with sensation felt at the vulva.

One of the first things you will learn when charting is that MALES ARE FERTILE 24/7. Females are fertile only cyclically, and on average the fertile window will be for less than 1/3rd of the female menstrual cycle.

In the beginning, there is sometimes a steep learning curve with tracking these signs. Your partner may forget to check cervical mucus at every restroom break or they may be erratic in taking their temperatures. Your role at this time is be supportive. If you are living with your partner, you can help remind her to take her temperature upon first waking (if they are choosing to chart this sign!) You may also want to take part in keeping the chart.

While it is relatively rare for the partner to help chart, it is encouraged that you learn how to help classify her fertility signs or read the chart if possible. In the very least, you need to learn to respect your partner’s fertile window and not expect to ejaculate inside the vagina in the fertile window. I’m being blunt here. You will get used to “TMI” with charting! You can learn to understand the cycle by taking a class together. This is a great activity for bonding, and so that you have more equal responsibility in your family planning.

An easy way to get involved in your partner’s charting routine is to use a paper chart. I keep a paper chart on the bedside table. It is always visible. My chart is pretty easy for my partner to read because the “baby” symbols mean possible fertility. You could do this with any method. Sit down together when you record the observations. Have your partner to explain what the fertility status of the day means.

This is an example of a paper chart on heavier cardstock. The days with babies are possibly fertile. Other days are available to use when the rules allow it. Charting on paper is a great way to share your chart with ease.

But Why Would I Attend a Class or Learn About Charting if I’m NOT the Female Partner?

Because you want to be a good, supportive partner!

When you understand your partner’s chart, you understand the chance of pregnancy that you both have. This can prevent mistakes from occurring if there is more than one set of eyes on the chart. When you become attuned to your partner’s menstrual cycle, you will also begin to realize why their mood might change throughout the cycle. This is fantastic for relationship communication. Your partner is not perfect. They may make mistakes when charting. Two is better than one for catching these!!

How Will We Avoid Pregnancy in the Fertile Window?

One of the first things you will learn when reading a fertility awareness book or taking a class is that you are expected to abstain from penis-in-vagina sex in the fertile window.

The reason for this is simple: it is only possible to get pregnant in the fertile window.

If you have penis-in-vagina sex in the fertile window, there will always be a chance of pregnancy. If you are avoiding pregnancy, this means that sex in the fertile window could result in an unintended pregnancy.

During this time, it is suggested that the couple work on other aspects of the relationship. Go on dates, cuddle, talk, play games.

If you decide to break the rules by having sex, you should be prepared for the possibility of pregnancy.

For Catholics, this is the only “licit” option for the fertile window.

For non-Catholics, oral sex and sex involving hands is safe in the fertile window as long as no semen ever gets near the vulva or the vagina. If semen touches this area, pregnancy can occur.

To determine how you will proceed in the fertile window, you and your partner should place yourself on the intentions scale. In the context of fertility awareness, intentions means how open you are to pregnancy.

The basic possible intentions follow. Select which is most appropriate to you as a couple. TTA means “Trying to Avoid” a Pregnancy.

TTA Seriously Avoiding: For these people, an unintended pregnancy may be devastating, whether to health, the relationship, or finances. A pregnancy is being avoided very strictly. These people should adhere to the rules of their method as closely as possible.

TTA Regular Avoiding: For these people, pregnancy is being avoided and the rules are followed. A pregnancy wouldn’t be convenient, but it would not endanger their life.

TTA Loosely Avoiding: For these people, a broken rule isn’t the end of the world. They may do strategic risk-taking like breaking rules on the cusp of the fertile window, or using something like the withdrawal method in the fertile window. They are not actively seeking a pregnancy, but they are okay with some chance of it happening.

TTW Whatever Happens: For these people, pregnancy would be okay whenever it happens. They break whatever rules they want. They aren’t actively timing sex for the most fertile days, but it might happen.

TTC Trying to Conceive: For these people, the rules do not have to be followed. They actively try to have sex in the fertile window.

You and your partner should discuss this scale and decide where you land before utilizing the fertility awareness method for sex.

What If We Decide to Use Barriers in the Fertile Window?

Remember, while you are fertile 24/7, your female partner is not. It is really important that if you are avoiding pregnancy that you respect your partner’s fertile window.

Some couples decide to use condoms, the withdrawal method, or diaphragms in the fertile window.

The most likely time for a barrier to fail is in your fertile window. After all, you aren’t using them at the other times of the cycle.

I personally believe that a couple has the right to make an informed choice in the fertile window. In particular, the male partner should realize that he is the one putting on the condom or pulling out. If he fails to do either correctly, a pregnancy can result. If you use these methods, do the research and inform yourself about how to use them correctly and what their efficacy is. If you are okay with this risk, you can use barrier methods. At the point you use a barrier method – you are outside of correct use for the fertility awareness method. Always remember that. An unintended pregnancy would be classified as a user error or barrier method failure.

How Long Does it Take to Practice Fertility Awareness Confidently?

On average, you will want to do at least 3 to 6 cycles of follow-up with an instructor to be completely autonomous and confident in charting. When you work with an instructor, you may be able to start utilizing the method to avoid pregnancy as sooln as the first cycle charting! (This is assuming that your partner has been diligent in their charting).

If you have PCOS, are coming off hormonal birth control, or are breastfeeding, you may need close instruction for longer. The Billings Ovulation Method recommends following up until the third ovulatory cycle postpartum. This could take a year or more if fully breastfeeding.

To Male Partners: What Advice Would You Give Male Partners Who Are New To Fertility Awareness?

These responses are taken from a 2019 survey I did on the male partners of FAM users. Enjoy!

“At first it seems backwards since science has a simple fix for conception: hormonal birth control. Some women are fine on hormonal birth control. Some can be really crazy on it. With some women, it can even kill their sex drive. With mine, she becomes so crazy that it kills both of our sex drives. So we’re doing this weird fertility awareness thing. Here’s my advice if you have a woman like mine. Even though she’s so beautiful and sexy that you just want to risk ejaculating in her to possibly get her off, you can’t do it with this. Yes, it puts more pressure on you to wear a condom and/or pull out, but at least your wife isn’t batshit crazy. And she’s still horny. So it’s worth it. Plus you learn a lot about the female body because I guarantee she’ll keep you up at night telling you about it lol. So don’t complain. We’re still getting laid. Unlike our friends who’s wives are on the pill or IUD. It just puts more pressure on us to prevent a baby. If she gets pregnant again, it’s probably our fault with this. And I’m ok with that. War Eagle!”

“You will wish you had always known this information. Test your pre-cum under a microscope for sperm if you are going to use withdrawal.”

“Knowledge is power and pleasure.”

“To do the research to fully understand the anatomy and physiology which will give you confidence in trusting the fertility awareness method.”

“Good luck m’a friend.”

“Embrace it.”

“Don’t be afraid to ask questions!”

“Be patient and understanding whilst always at least attempting to understand the technicalities surrounding the practice of the method.”

“Listen.”

“Read as much information as you can and stay informed.”

“Trust your partner, but do some cursory research as well. You both need to understand it to trust it.”

“Learn the actual science (as in the research literature) behind these technologies. Much of the medical establishment unfortunately has both insufficient and badly-outdated knowledge about FAM. Also, such will only be successful if the couple are both wholly on-board and possess the necessary knowledge, discipline, and self-control to utilize the method(s) correctly, whether trying to conceive or to avoid.”

“Get ya woman on it like yesterday.”

“Talk to your significant other and learn from her.”

“Learn about which days are the best to get pregnant; if you want to get pregnant together there is a way to learn the best days with a good degree of certainty. I think other men could benefit from learning this information about their partner.”

“Learn how the world works, and use that knowledge.”

“Listen to your woman and trust what she says about her observations. It’s not like the guy is the one using the method, but it’s good to be aware of it.”

“If you think it’s burdensome, remember the health and relationship benefits far outweigh the daily minor inconveniences. Encourage your SO to do the research to make sure they’re doing it right as well.”

“Shut up, pay attention.”

“If you are concerned about the well being of your partner, you’re more likely to succeed in supporting her and have an involved role in fulfilling both your reproductive goals through fertility awareness.”

“Be patient.”

“Take a lesson yourself or attend one with your partner, you are only going to trust it if you understand how it works yourself. When you actually see that it makes sense, it’s not some weird alternative thing, you can trust it a lot more.”

 

More Resources for Male Partners

Crash Courses in FAM

“The Rules of the Sympto-Thermal Method of Fertility Awareness” by Jennifer Aldoretta 

This resource is a simple overview of the rules with examples. It links to other resources on understanding the female and male reproductive system. This is a good, fairly quick read for men who want to understand the basic rules.

“Natural Contraception: Why I Haven’t Used Birth Control in Over a Year” by Jessie Brebner

Jessie discusses her symptoms that lead her to stop taking hormonal birth control. She then does a brief overview of how the fertility signs change throughout the cycle and how sperm life plays into fertility.

Men and NFP/FAM

“Straight Talk on NFP, Man to Man” by Couple to Couple League

This is a Catholic resource. Religious men may find this resource useful.

“Why Men Resent Natural Family Planning” by Gerard Migeon

This also leans religious but may be useful for men who are having trouble adjusting to avoiding unprotected sex in the fertile window.

“Use of Natural Family Planning (NFP) and Its Effect on Couple Relationships and Sexual Satisfaction: A Multi-Country Survey of NFP Users from US and Europe.” Front Public Health. 2017; 5: 42. Published online 2017 Mar 13. doi: 10.3389/fpubh.2017.00042

This is a recent scientific article that studied the effect of NFP on relationships.

“Fertility Charting: What’s a Guy to Do?” by Valerie Pokorny

How can men help with charting? How can they be supportive?

A Day in the Life of a Marquette User

Have you ever wondered what it was like to chart with the Marquette Method? This blog attempts to give an overview of what it is like to chart with the Marquette method (monitor/hormones only) for one cycle. Since I am in regular cycles, this is only an overview of what that looks like. Postpartum charting involves a whole lot more testing!

Day 1: Record Heavy Bleeding.

(This is an available day for safe sex based on my Marquette calculation rule. Marquette calculation rules rely on the earliest peak in the last 6 cycles minus 6. For me, this is Day 7, with Day 8 being automatically the first “unsafe” possibly fertile day. Any time of day is allowed within Marquette calculation rules).

Day 2: Record Heavy Bleeding.

Day 3: Record Heavy Bleeding.

Day 4: Record Medium Bleeding.

Day 5: Record Medium bleeding.

Day 6: Do absolutely nothing! My testing window opens on Day 8.

Day 7. Do absolutely nothing! My testing window opens on Day 8. This is my last day to have sex pre-ovulatory per the rules of the method.

Day 8: I wake up at 6:30am, pee in a cup, dip the stick for 15 seconds, and wait 5 minutes for the Clearblue Monitor to read my test. I get a “L” or low estrogen reading. The Clearblue monitor reads both estrogen and luteinizing hormones.

Day 9: I wake up at 6:30am, pee in a cup, dip the stick for 15 seconds, and wait 5 minutes for the Clearblue Monitor to read my test. I get a “L.”

Day 10: I wake up at 6:30am, pee in a cup, dip the stick for 15 seconds, and wait 5 minutes for the Clearblue Monitor to read my test. I get a “L”

Day 11: I wake up at 6:30am, pee in a cup, dip the stick for 15 seconds, and wait 5 minutes for the Clearblue Monitor to read my test. I get a “H” or high estrogen reading. This means that my real fertile window is likely opening and ovulation could be around the corner.

Day 12: I wake up at 6:30am, pee in a cup, dip the stick for 15 seconds, and wait 5 minutes for the Clearblue Monitor to read my test. I get a “H.”

Day 13: I wake up at 6:30am, pee in a cup, dip the stick for 15 seconds, and wait 5 minutes for the Clearblue Monitor to read my test. I get a “H.” Based on having high quality mucus (which is not required to notice for monitor only), I crosscheck with a LH test because I know ovulation is likely approaching soon.

Day 14: I wake up at 6:30am, pee in a cup, dip the stick for 15 seconds, and wait 5 minutes for the Clearblue Monitor to read my test. I get a “P.” This means the monitor has now detected my LH surge. I crosscheck this same urine with another LH cheapie test, and it is also positive.

This means I have peaked for the cycle! All other readings after the “P” are automatic, and I do not have to take any other tests. Marquette requires me to meet PPHLL before resuming intercourse on the day after the second L.

At this point, if I desired, I could be done charting for the whole cycle! This means that I only had to really chart for approximately 7 days this cycle. How easy is that?!

If I desire, I could also take a Proov progesterone test around the second L at the end of my count. This would provide proof that the hormone progesterone has taken over.

Close up of a Body Literacy Collective “Read Your Body” chart with Marquette markings.

Some of the downsides to this method could be:

  • The Monitor missing peak (happens in up to 10% of cycles and many people crosscheck with LH for this reason, or even add temperatures or Proov)
  • The Monitor will not tell you if you are going to ovulate early. The only way to detect earlier ovulation is to track cervical mucus very carefully.
  • The sticks are approximately $1.50 each. This could get very pricey for delayed ovulation!
  • The method may not be appropriate for people with very irregular cycles or elevated LH levels (some PCOS users may have elevated LH).

I personally crosscheck my monitor with Billings Method observations and Proov tests. You can read about charting with Billings here.

Disclaimer: Do not try to learn how to chart from this post. Everyone has their own unique cycle and this is just an example of charting with Marquette in a regular cycle. I recommend finding an official Marquette teacher here. Because the Marquette method uses the Clearblue monitor which is designed for trying to conceive, you will need to get instructions to use this monitor for avoiding pregnancy.

A Day in the Life of a Billings Ovulation Method User

Have you ever wanted to know what it is like to chart with the Billings Ovulation Method? This blog attempts to give an overview of what it is like for one individual to chart with the Billings Ovulation Method (BOM) over a single cycle. I go through each day of the cycle and explain my overall charting habits. All times are just approximate. I get personal and discuss some challenges I experience with natural family planning. BOM involves tracking sensation felt at the vulva along with the visible appearance of cervical mucus as a person goes about their day to day activities.

Day 1: Record heavy bleeding. Heavy bleeding feels wet. Done! Users are not allowed to use heavier days in the Billings method when avoiding pregnancy. This is a true day one of a cycle because it was preceded by a Billings peak day.

Day 2: Record heavy bleeding. Heavy bleeding feels wet. Done!

Day 3. Record medium bleeding. Medium bleeding feels wet. Done!

Day 4: Very light bleeding. It is now possible to observe my basic infertile pattern of dry.

8am: I feel dry and see a small amount of blood.

10am: I still feel dry.

8pm: I still feel dry. I see no mucus. Sex is allowed in the evening of this day. We use this day.

Day 5: Extremely light bleeding. Technically this day is not allowed for intercourse since I used the day before and Billings method rotates alternative evenings. We use this day anyway #rulebreaker

Day 6: I feel dry. I do not see anything. I record this day as “possibly fertile” since I broke a rule and used the day before. Every day after intercourse gets this white stamp in the pre-ovulatory time of the cycle.

Day 7: My basic infertile pattern of dry is still there! I notice nothing the entire day in the bathroom and my vulva sensation is dry. Sex is allowed in the evening. I consider my evening 8pm because I go to bed around 9pm on average. We use this day.

Day 8: I feel dry all day and see nothing. However, this day is not allowed since Billings alternates days. We skip this day.

Day 9: I feel dry all day and see nothing. However, we do not use this available day because we are both tired. It happens!

Day 10:

9am: I feel a bit moist. I don’t see anything when wiping in the bathroom.

11am: Still feel moist. I do not see anything in the bathroom.

2pm: Still feel moist. I do not see anything.

4pm: Still moist. Nothing seen.

4:45pm: Walking to my car from work. Still moist!

8pm: Overall observation for the day is moist. I record it. The fertile window has opened. This is known as the point of change.

Day 11:

7am: I feel moist as soon as I walk to the bathroom. I see very scant clear mucus on the tissue.

I do not see or feel anything for the rest of the day.

8pm: Overall observation for the day is “moist, clear”

Day 12:

7am: I feel moist, but see nothing.

10am: I feel moist, but see something white.

8pm: The feeling remains the rest of the day. I record “moist, white” for the day.

Day 13:

7am: I feel dry.

11am: I still feel dry.

1pm: I feel wet sensation when walking to my office. This is a change, so I keep that in mind.

I feel damp the rest of the day. I never see anything in the bathroom. I record “wet” as the most fertile sensation that day.

Day 14:

6:30am: I immediately feel moist.

9am: I see long clear strings when wiping in the bathroom.

11am: I have a wet sensation when walking around.

3pm: I walk around my work place. I still feel moist.

5pm: I see clear strings again.

8pm: I record “wet, clear strings” on my chart.

Day 15:

7am: I feel a gush as soon as I wake up. I do not see anything in the bathroom.

9am: I see scant, clear mucus on the tissue when wiping.

11am: I feel very wet walking around my work place.

1pm: I do not see anything on the tissue.

3pm: I do not see anything on the tissue.

5pm: I feel wet sensation while making dinner.

8pm: I record “wet, clear” as my observation for the day.

Day 16:

7am: I do not feel or see anything when waking up.

9am: I still do not feel or see anything.

12pm: I go for a 20 minute walk. When I get back, I feel slippery sensation. I go to the bathroom and see copious amounts of long, clear mucus.

8pm: I felt slippery the rest of the day. I record “slippery, long clear” on the chart.

Day 17:

6am: I feel dry when waking up.

8am: I don’t see anything or feel anything.

11am: I don’t see anything or feel anything.

8pm: The day was nothing felt, nothing seen all day. I record dry. This means yesterday was my peak day because it was a changing and developing pattern ending in slippery followed by an abrupt dry up to no longer wet or slippery.

Day 18 and Day 19:

I have the same experience as day 17. I pay attention all day and observe no mucus or sensation.

Day 20:

Ovulation is expected to be over and the cervical mucus plug has re-closed for the cycle. Sex is available any time for the rest of the cycle until day one of menstruation occurs. I can chart, but it is not necessary to wait until the evening and observations are less important as sex may interfere at any time.

Day 28: I record heavy bleeding and the rules restart.

Real Talk: Diffulties / Obstacles With Billings Not Seen on the Chart

These are things that I find can be difficul in my own personal experience. I know that people in really long cycles or with other irregularities may have different issues than me.

Challenge One: Alternative evenings only can be a struggle, and it seems even harder for me right before the fertile window opens due to my mood at this time of the cycle. This follicular phase is much longer for me than my luteal phase on average, and this means alternative evenings is the rule for most of my cycle. If someone has a partner with a conflicting schedule, this can especially be offputting. I think anyone who is going to practice this method should consider whether this is practical for their lifestyle.

Challenge Two: Expected abstinence in Billings can be hard, and I have fairly short fertile windows on average. I originally practiced sympto-thermal, and I switched to Billings when I realized that overall consecutive abstinence was much less overall (for my own cycle, Billings: 9 days, Sympto-Thermal: 14+ days). I tend to break some rules still, but this is much more suitable for my fertility intentions level than sympto-thermal.

Look out for my next blog on “A Day in the Life of a Marquette User.”

Disclaimer: Do not try to learn how to chart from this post. Everyone has their own unique cycle and this is just an example of charting with Billings in a regular cycle. Please reach out to me if you would like to learn this method with me as your guide. Alternatively, you can find a teacher here.

An Honest Review of Kegg

The kegg device draws a fertile window to give you the best days for conceiving a pregnancy based on the electrolyte levels present in the vagina. To use this device, someone would insert kegg into the vagina in the same two hour period of time during the day. kegg takes approximately two minutes to give the user a reading on the graph. As a bonus, it also gives you the opportunity to do kegel exercises while using it. Click here to read an article on the science behind kegg.

This product is an exciting development in the femtech field because it actually does read a real-time fertility sign. Cervical mucus is completely necessary for natural conception to occur. Without the presence of cervical mucus in the cervical crypts, sperm cannot to get to their destination to reach the egg. For this reason, anyone trying to conceive needs to track cervical mucus or use an alternative device such as Kegg (or a device that reads estrogen levels) in order to time intercourse for when they are most likely to conceive.

Here’s what Kegg looks like!
My kegg values compared to my Billings Ovulation Method cervical mucus observations. I believe that the kegg was highly correlated with my actual fertile window based on a traditional fertility awareness based method!

Who is Kegg right for?

It is important to know that kegg is not suitable for avoiding pregnancy. It is designed to find the most suitable days for conception. For those avoiding pregnancy, the fertile window has to be much longer than the window what the kegg gives. Until kegg has been studied for pregnancy avoidance, I cannot recommend it as an alternative to cervical mucus checks which must be made multiple times of day until the evening when someone is strictly avoiding pregnancy.

kegg may be right for someone who wants to conceive without needing to take a class or read a book on cervical mucus. In my experience, for the most part, it detected my most fertile days in a way that would likely lead to conception if used.

kegg may not be right for you if you have a very erratic schedule. Because it has to be used in the same two hours and cannot be used up to 8 hours after sex, this may make Kegg harder to use.

Click here to purchase your kegg!

Customer service with kegg has been excellent. The team is very reachable. If you would like to see more kegg charts and learn from fellow keggsters, you may join the kegg facebook group for conception or for those using it along with other fertility signs to avoid.

Why You Should Be Cautious About Calendar-Based Methods (Daysy, Natural Cycles, DOT)

Calendar methods get a really bad rap in the fertility awareness communities. A lot of this is for a very good reason. When the calendar rhythm method was discovered in the 1930s, it was revolutionary. However, since then, we have discovered real-time fertility signs such as cervical mucus, basal body temperature, and urinary testing.

To illustrate why calendar-based rules can be both risky and occasionally line up with real-time signs, I charted with three calendar-based methods for opening the fertile window versus a method with real-time fertility signs only (specifically I used the Billings Ovulation method for my real-time method).

In the first line, you will see the Natural Cycles method. This method relies on basal body temperature as its only required real-time sign. Unfortunately, basal body temperature can only tell you when your fertile window closes, not when it opens. Temperature has no predictive qualities for letting you know if you are going to ovulate at a different time than normal.**

With only 3 cycles of my previous data, Natural Cycles gave me until day 8 as safe for this cycle. What Natural Cycles doesn’t know is that my cycles range from 24 to 30 days long over a calendar year. For this reason, it can be quite risky some cycles for me to be allowed safe sex until day 8. The fact that this cycle happened to line up is merely a coincidence! This coincidence can cause a confirmation bias when people use this app and do not get pregnant. If you are seriously avoiding, be wary of any method that doesn’t allow you to crosscheck the opening of your fertile window.

Natural Cycle also closed my fertile window in an incredibly risky manner. It told me I was safe on the morning after my real-time sign of “peak” day. In fertility awareness based methods, “peak” is the highest level of fertility you can get in a cycle. The two days following Peak day also have a significant chance of ovulation occurring. Every time I have used Natural Cycles (here is my previous try with it last year), it gives me a very risky closing to the fertile window.

Here is my full chart from Natural Cycles this time:

Natural Cycles app

Next up on the chart above illustrating my safe days is the Daysy thermometer. Daysy is a thermometer that relies on calendar based rules and potentially earliest temperature shift based rules to open the fertile window. In my two experiences with Daysy, it has been much more conservative than Natural Cycles. Daysy does learn over time, so it is possible I could have a risky day with it in the future, but so far I have not had any risky days with Daysy.

You can see in the image above that Daysy confirmed ovulation last out of all of the methods. I believe this is because my temperature shift was a bit erratic and because the device does not allow the user to mark temperatures questionable (I had two that were marked questionable for my own manual interpretation).

Daysy does not rely on anything except cycle length and temperature shift timing to open the fertile window. For this reason, Daysy can be risky if you ever have a very early ovulation. It can also be risky if the user is not careful about only taking their temperature when it is not disturbed, or if the device misreads a temperature shift. In my experience, Daysy tends to be much more cautious than Natural Cycles.

Daysy Chart

My third line is a true calendar only method. DOT has over a year of my data; however, the prediction has only given me one extra safe day during my whole use of the app. DOT is entirely based on the calendar method. However, interestingly DOT got higher efficacy than Natural Cycles in their study. Here is my DOT chart below

While I do not recommend the calendar method to most charters, this app can be useful for period prediction or for birth control if you are okay with an unintended pregnancy if you were to suddenly have a longer or shorter cycle. Users for DOT must have no more than 8 days variation in their cycle per calendar year.

In the example above, DOT actually gave me no risky days whatsoever. Again, this is a coincidence that it seemingly lined up with other signs. At any time, cycles can always change.

DOT the app

Finally, my main method is the Billings Ovulation Method. Billings relies only on real-time fertility signs. This means that they reject any calendar-based thinking, including the idea that menstruation is automatically safe. My Billings chart was based on when cervical mucus opened the fertile window (cervical mucus is what helps sperm survive) and when cervical mucus peak rules closed the window (when sperm can no longer access the cervix because ovulation is over and the cervical mucus plug has closed).

I always recommend real-time fertility signs to anyone who wants very high efficacy, the least amount of consecutive abstinence, who may be in regular or irregular cycles, and who want to understand their body and their health on a more deeper level. Here is an example of a Billings method chart. The babies represent possibly fertile days.

Conclusion:

I hope this post helps you think critically about whether calendar-based methods for opening the fertile window are right for you!

Here is a breakdown of efficacy for these methods:

Daysy: Claims 99.4% perfect use, but their study was retracted.

Natural Cycles: 98% perfect use, 93% typical use.

DOT app: 99% perfect use, 95% typical use.

Billings Method: 97.8 to 100% perfect use, typical use varies depending on country.

**Some modern fertility awareness methods use the Doering Rule to set the opening of the fertile window. This can be very safe and yield high efficacy. Doering is based on the earliest temperature shift of all time (not just the last year).

An Honest Review of Proov PdG Tests

Are you interested in testing your progesterone at home with Proov?

If you decide to purchase, use promocode: CHARTYOURFERTILITY for 30% off the original PdG tests or Proov and Confirm.

Proov tests check levels of the hormone metabolite PdG in the urine. Proov tests are an FDA approved product. People who are ovulating produce the hormone progesterone after ovulation. If you are a fertility awareness charter, you can use these tests to double check that ovulation has occurred along with your other fertility signs. If you are seeking to become pregnant, you can use these tests to help see if your luteal phase is sufficient to support a pregnancy.

Here are a few links on recent studies so that you can be more informed about using this product:

Proov is Clinically Validated

Study on Urinary Hormones and Progesterone

Study on Proov Combined with Fertility Awareness Methods

Study on Combining Proov with Clearblue

I have personally been using Proov since 2019. I can highly recommend this product. Proov has excellent customer service and is continually trying to improve their services and expand product options.

My most common day to get my first positive Proov is approximately 3 to 5 days after a positive LH test. I love having Proov as a crosscheck so that I can have an extra way to confirm ovulation. I like having a ton of data in my fertility awareness routine.

For those trying to conceive, the tests can be used around 7 to 10 days post ovulation (counting from positive LH test). If the tests are positive, this is a good sign that your progesterone is high enough when implantation is most likely to occur on days 7 to 10 post positive LH test.

I used it 7 to 10 days past my first positive LH test to see if my progesterone levels were high enough in the last part of my cycle. Ideally, for conception purposes, you want to see positive Proov tests on days 7 through 10.

These tests are also useful for people with irregular cycles or tough cervical mucus patterns because they can help you know if you have indeed ovulated.

The Proov Insight app can help you read your tests, including PdG, LH tests and the new Multihormone test! It recently updated to include numeric values. This makes the data even more meaningful! Some people struggle reading Proov, and the app is definitely useful for those people.

The app will give you an “ovulation score” based on whether your tests are positive during the days most likely for implantation. This ovulation score can help you plan to improve your health if you notice low PdG levels.

It’s me!
My ovulation score!
PdG levels in the app

I highly recommend trying Proov if you are curious about your progesterone! For now, I have decided to make Proov a permanent part of my fertility awareness routine.

Use promocode CHARTYOURFERTILITY for 30%!

Top 3 Charting Mistakes When Beginning Fertility Awareness

I’ve been moderating a rather large Facebook group for fertility awareness charters for over a year and a half now (26,000 members and climbing, join here!), and before that I constantly scrolled through the Kindara community charts very regularly. These experiences in various FAM communities, as well as my certification as a FAM instructor, have alerted me to some common mistakes that new charters make. I outline what these are and how to avoid them in this post.

Mistake #1: Using a Fever Thermometer Instead of a Basal Body Thermometer

Many folks read Taking Charge of Your Fertility and see that we only chart to the first decimal place in Fahrenheit. Then they think that using a fever thermometer is okay since fever thermometers have only one decimal place. This is NOT true. We need the sensitivity of a basal body thermometer with two decimal places. If you are someone who has weak temperature shifts, it is even more important to have the right thermometer! Many people also miss that the original studies that the symptothermal efficacy is based on requires you to take your temperature for three minutes. Almost no fever thermometer does this, and even some basal body thermometers do not. Make sure that you have the correct thermometer that allows you to either take your temperature for three minutes or prewarm the thermometer.

Mistake #2: Overmarking or Undermarking Cervical Mucus Observations

I often see people overmark “watery” type mucus because the vagina is always moist. Other people will overmark “creamy” type mucus even though what they are seeing may be cell slough. While it is definitely better to assume fertility if you are uncertain, this can cause unnecessary abstinence. The solution to this problem is to work with an instructor. The efficacy of the method is based on working with an instructor anyways, and it is generally best to get a professional’s advice on your chart if you are seriously avoiding pregnancy. If you need an instructor, you can find one here.

I also see people undermark cervical mucus. This is the more dangerous of the two mistakes. Many people decide not to pay attention to wiping or walking sensation or view sensation as less important than their visible mucus. Since vaginal sensation is equal to cervical mucus, it is highly important that you also chart your sensation according to whatever method you are following. If there is any change in vaginal sensation, even if you do not see mucus, the fertile window should be considered opened in the pre-ovulatory time of the cycle.

Mistake #3: Following a Hodge-Podge of Methods

The fertility awareness method only works as a form of birth control when the rules are followed very carefully according to an established method. Simply beginning to take your temperature and marking mucus without reading a manual or taking a class is NOT enough for anyone who seriously does not want to get pregnancy. Do NOT rely on social media posts to learn how to chart. It is necessary to really learn what you are doing if you do not want an unintended pregnancy. You can find out about multiple methods by visiting my post on getting started.

An Example of a Symptothermal Chart on Kindara

An Honest Review of Tempdrop

Are you looking to simplify your basal body temperature charting routine? Is getting up in the morning just too hard to remember to take your temperature? Read on!

There are currently a few wearable basal body thermometers on the market such as iFertracker, Ava, and Tempdrop. In this blog, I will review the Tempdrop device. If you decide to purchase, use this link and get 10% off the device. This discount only works on the Confidence and Freedom Packages.

tempdrop

Tempdrop is a wearable basal body temperature thermometer that came onto the market in 2017. Rather than setting an alarm, you can simply put this thermometer on before bed. You wear it around your upper arm (and it may be worn in a bra as well). It needs 3 hours of sleep to determine your basal body temperature. The device uses an algorithm to find your true temperature, regardless of how many times you have gotten up or whether you had restless sleep this night.

This device is very popular with shift workers, breastfeeding mothers, and other people who don’t get a regular amount of sleep and wake up at different times. It holds 24 hours of data, and it must be synced at least every 24 hours or you will lose previous data. After wearing it for 15 days (as of March 2020), the algorithm will kick in. (If possible you should back up temp with oral basal body temperature for the first 60 days if you are avoiding pregnancy. If not, use a different method of protection). By day 60, the device will only change and make improvements to the last 2 temperatures taken.

PROS

  1. Helps Women Practice the Sympto-Thermal Method: If you are not able to take your temperature with a normal basal body thermometer due to breastfeeding, shift work, or other irregular sleep schedules, this device will help you practice any sympto-thermal method of fertility awareness or natural family planning. 
  2. Great Customer Service: I have had to interact with Tempdrop Customer Service several times. They are fairly prompt with responses, and they do try their best to troubleshoot with you. While there was an issue with the Tempdrop frame breaking, they fixed this issue for free.
  3. No Alarm Needed: Hate your alarm? You won’t need to set it to take your temperature if you wear Tempdrop. This is a big game changer for people with irregular sleep schedules. It can make your mornings much easier. 
  4. Helpful Facebook Group: You may join the Tempdrop Facebook group for support and charting help. They have detailed units about how to use this device to achieve or avoid pregnancy. There are multiple spin-off Tempdrop groups that you may want to explore as well.

CONS

  1. Price: Tempdrop Basic Package is $159 (12 month warranty). Tempdrop Confidence Package is $199 (12 month refund guarantee, 24 month warranty, Tempdrop Care available). Tempdrop Freedom Package is $249 (24 month warranty, Tempdrop Care, 12 month refund guarantee, extra armband and battery). While this price could be worth it for you if it’s the only way you can take your temperature, it may not be affordable to everyone. This price is still a little high, especially if you are making minimum wage or have other expenses like childcare. The referral codes only work with the higher price packages (scroll to the end of this to get 10% off the device). If you have kids or animals, you may want to get a better package if you believe your device may be damaged easily.
  2. Battery: The device does not tell you when the battery is dying. However, you can contact support to find out. They now recommend changing the battery at 8 months.
  3. Frame Breaking: Many people (myself included) have had the frame break easily. However, the company promises that they are trying to fix this issue and a newer frame with different plastic will be issued with devices bought this year.
  4. Changing Temperatures: If you are the anxious type, you may not like the last few temperatures changing. While this is due to the way the device functions, some people may find it unsettling. Second, many people who chart expect that they will see a drop in their temperature before they get their period or the day of. I personally never got the drop to indicate my period was coming until Tempdrop retroactively adjusted my last temperature. With oral basal body temperature, changing temperatures is not a problem.

In 2020, Tempdrop released their own app. I do NOT recommend using it to interpret your data for you. It is quite expensive, and it does offers to interpret your data for you. The best app is one that lets you make all the decisions instead of forcing you into certain rules that may not fit your chosen method.

Here is an example of the Tempdrop app:

Screenshot Image

Source: Google Play Store

Instead, I recommend using Read Your Body app which is only $15 USD a year and empowers you to read your own fertility signs! It automatically syncs with Tempdrop. This is my top recommendation if you are determined to use Tempdrop for avoiding pregnancy. It is entirely customizable down to the cervical mucus categories and incredibly diverse custom data. See my blog on using this app for 7 different types of fertility methods and devices.

cycle 53_1701120622760017610480320543813112..png

My Original Experience with Tempdrop in 2018

I used the Tempdrop device for almost 12 months. I found my oral temps to be more predictable and more steady when observing my own trends over time. I get very steady or repeating temperatures with oral charts most of the time.

However, I am not a shift worker, so I will admit that I do not need Tempdrop like some people may do. I already have to wake up at the same time 5 days a week, and I don’t find it inconvenient to take my temperature on the weekend. Even if I take my temperature later, my oral temperatures are incredibly steady. My oral temperatures also caught my shift earlier than Tempdrop did on two separate occasions (I have seen other people say that Tempdrop catches their shift sooner than oral temperatures, so this is really an individual thing).

Funnily, alcohol appears to effect my Tempdrop temperatures MORE than my oral temperatures. I speculate that this is because whenever I would put the Tempdrop on, I was still recently drinking and hotter due to the alcohol. In contrast, I would be sleeping for 8-9 hours and have worn off the alcohol before taking my oral temperature.

Here is one full cycle comparison:

Tempdrop (Ovuview)

ovuview

Oral Temperatures (Kindara)

kindaraoral

Tempdrop temperatures will either read higher or lower than your oral temperatures. In my case, they read much higher.

Want to try it yourself?

Use this link and get 10% off the device. This discount only works on the Confidence and Freedom Packages.

Full disclosure: I will get a $10 USD kickback if you use my coupon. Thanks for using it!

Continue reading An Honest Review of Tempdrop