Cool Femtech that You Can Use (With FAM) to Avoid or Achieve Pregnancy

As you probably know if you have read any of my previous critiques of femtech, I am often wary of it. However, there are some devices and tools that I can 100% get behind because they allow user interpretation or are a part of a fertility awareness based method. The following list is of devices that can be used with a fertility awareness based method to avoid or achieve pregnancy.

The Tempdrop Thermometer is a wearable BBT that you can use to get accurate temperatures no matter your amount of wake times during the night. This is super useful for postpartum women or those who have irregular sleep times!

Click here to read my Tempdrop Review and use my referral link to get 10% off the two top tier options.

Proov Test Strips are used to determine if your progesterone levels are high enough to sustain pregnancy and as an extra way to confirm ovulation for those avoiding pregnancy. I have personally used these as an extra layer of ovulation confirmation. Use PROMOCODE: CHARTYOURFERTILITY for 30% off Proov.

Order them here: Proov Test.

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

Why did I choose to become a fertility awareness instructor?

Why did I choose to become a fertility awareness educator?

Fertility awareness is the sex education I wish I learned in middle school.

When women actually learn how their fertility works, they learn that getting pregnant is not as easy as the drop of a hat. We learn to appreciate and live with rather than work against our fertility.

Almost every person who I’ve seen read #takingchargeofyourfertility or take a FAM class comes out of the experience saying, “Why have I not always known this information? I wish I could have known this when I was younger!” Learning fertility awareness changed my life, and I know it can change yours too.

Do I believe FAM is the right method of birth control for every woman?

No, it is probably not.

But I do believe that every woman should be taught how to understand her own body. What she does with that information is up to her.

Fertility awareness gave me the ability to avoid pregnancy on my own terms. It gave my spouse more knowledge about my body and the changes I experience during my cycle. It has strengthened my relationship in more ways than I can name.

If you want to learn FAM, I suggest getting an instructor. Check out this website for a list of instructors.

Embracing Our Bodies with Fertility Awareness

In contrast to hormonal birth control, fertility awareness asks us to change nothing about our bodies. There are no harmful side effects, but there is the beneficial side effect of actually ovulating.

Ovulation is good for your health, and I believe that we as women have the #righttoovulate

Fertility awareness teaches us how our bodies work so that we can modify our behavior rather than our biology. Hormonal birth control changes how our bodies work, FAM teaches us how our bodies work.

I strongly believe that fertility awareness teaches us the value of self-control. We learn that unprotected sex at all times is not necessary for a healthy relationship.

For those not abstaining in the fertile window for religious reasons, I also think it changes the generally very heteronormative view of sex and opens us up to new kinds of love and touching in the fertile window. And of course, if choose to abstain, there is room for emotional love during this time as well

If you are ready to take the plunge into FAM, I am now accepting clients for an asynchronous course with 3 cycles of help from myself. Sign up on my learn with me page or send me an email.

Shortcut charting, or “Wait… I don’t have to take my temperature every day?”

Many people come into FAM overwhelmed by all the data that they have to collect daily. It can be a bit of a turn off for those new to the method. They may wonder why they have to check their cervical mucus ALL day and then set an alarm on top of that.

When you first begin charting, it is vitally important to try to get the information down every day so that you can get into a habit and make sure that you are following the rules. Missing information will leave you with less complete charts that could leave you confused as to whether ovulation is confirmed or not.

However, once you have been charting for a significant amount of time and become confident, you can stop recording fertility signs once you have confirmed ovulation.

I am headed into chart number twenty-two successfully avoiding pregnancy with FAM, and I have been shortcut charting most of the time for about seven cycles now. I personally recommend confirming ovulation in 12 cycles before shortcut charting. This is so that you know how early you ovulate, your normal temperature levels, and how to tell whether something abnormal is going on in your cycle (ie sickness causing temperatures to be higher than normal or an abnormal cervical fluid dry up due to cold meds or some other medication).

Toni Weschler, author of Taking Charge of Your Fertility, recommends that women have several months of experience in the standard rules before taking any shortcuts. She offers some modified guidelines to follow and emphasizes that “contraceptive efficacy won’t be compromised as long as both your fertility signs have confirmed that ovulation has already been confirmed for that particular cycle.”

The Modified Rules

Temperature Taking

  1. You don’t have to take your temperature during your period. Toni explains that these temps may be unreliable anyways. However, if you have short cycles with early ovulation, you may need those temps in order to confirm ovulation. If you have a temperature shift CD12 or sooner, you will need some period temps in order to have enough temperatures to draw a coverline.
  2. You don’t have to take your temperature after you confirm ovulation with temperature rules. This means at least 3 high temperatures with a standard shift. If you have weak shift or a fall back rise, you must have the extra temperatures needed to fulfill those rules before you stop taking your temperature. Some people take their temperature again a day or two before they expect their period since it can (but not always) give an indication that menstruation is approaching.

Cervical Mucus

  1. You don’t have to check cervical mucus after you confirm ovulation. You will need to check until you meet peak rules (P + 3) and crosscheck this with 3 high temperatures before you can stop checking for cervical mucus. Again, if you have a weak shift or fallback, you will need to check until you meet the rules.
  2. From the day after your period until the day you observe peak type fluid, you should check cervical mucus continuously throughout the day and follow all rules for mucus checks. However, you don’t have to check cervical mucus multiple times a day once you observe peak fluid. If you observe peak fluid first thing in the morning, there is no need to keep checking. You have already recorded your most fertile observation for the day.

Those are the basic changes when short cut charting.

Here is an example chart.

This woman does not take her temperatures during her period. She begins taking her temperature on CD6 when menstruation ends. She checks her cervical mucus multiple times a day and follows the rules for checking until CD11. On CD11, CD12, and CD13, she observes eggwhite mucus first thing in the morning and doesn’t check again. On CD14-CD17, she checks mucus multiple times a day because she knows she needs at least a 3 day dry up (P + 3) to confirm ovulation. On CD 15, she has her temperature shift. CD16 is above the coverline. CD17 confirms ovulation because it is at least .4 F above the coverline. Ovulation is officially confirmed with both peak and temperature rules met. She takes her temperature again on CD26 to see if she gets a temperature drop indicating that her menstruation may begin soon.

People Who May Want to Think Twice about Short Cut Charting

Not everyone is suited to short cut charting.

  • Charting for Health: If you are charting for health, you may want to record your signs every day. Odd cervical mucus patterns and temperatures can indicate health issues. If this is your goal for charting, short cut charting may not be right for you.
  • Using Tempdrop: Tempdrop says to wear the device every day. If you don’t, it could disrupt the algorithm. As far as I know, they do not recommend short cut charting at this time. If you use this device, you may not want to short cut chart if you are worried about being at risk of pregnancy.
  • You aren’t confident in charting: If you are not confident in your ability to chart, you should NOT short cut chart. You should be 100% confident in your abilities before attempting this.
  • You are sick: If you are sick, you may want to chart more diligently and stay protected if you are uncertain about your chart interpretation.
  • You are only charting one sign: You NEED two signs in order to short cut chart. If you pick just one, you may be putting yourself at risk of unintended pregnancy. Ovulation must be confirmed with two signs.

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

Why I Do Not Suggest Using Natural Cycles

Natural Cycles costs around $10 a month, or $80 a year. The app claims to be able to tell you when you are and when you aren’t fertile by using basal body temperature (ovulation strips are optional).

This claim is not true. Natural Cycles only has a 93% typical use efficacy rating. After my experience, it seems even lower than that. I used Natural Cycles for 3 cycles and compared it with the sympto-thermal (STM) method that I use. The method I use is 98.2% effective with typical use.

As a long term charter, I use a doering rule (a rule to limit dry days). My last safe day for unprotected sex is day 5 of my cycle (usually the last day of my period) because of this rule. This rule is included in the high efficacy rates of the sympto-thermal method.

The charts that follow show when my method said I was safe versus when Natural cycles told me I was.

I have compiled 3 of my charts for comparison. During more than one cycle, Natural Cycles told me I could have unprotected sex on the day near my PEAK fertility. Peak day is the most likely day of ovulation, while not always the exact day of ovulation. Suffice it to say, the app told me that I could have unprotected sex on a day when pregnancy was still possible.

September Cycle (First with Natural Cycles)

On my very first cycle, without any knowledge of whether I had ovulated the cycle before, Natural Cycles gave me clearance to have unprotected sex during my period.

This is totally wrong. Without having confirmed ovulation the previous cycle, there is no way to know if this bleeding is safe or not.

The next BIG issue is that it told me I could have unprotected sex on the second day of my temperature shift (CD17). There is a huge chance that my egg could have still been viable and hanging at this point.

With the symptothermal method, you CANNOT confirm ovulation before 3 high temperatures.

The chart below has my actual safe days as calculated by doering. (Keeping in mind that I did confirm ovulation the cycle before so my period is safe. However, there is no way that Natural Cycles could have known that).

september 1

October Cycle (Second with Natural Cycles)

late september nc cycle

For the second time, Natural Cycles gives me a green light on the second day of a temperature shift in the morning. My egg could still be around! In fact, this green light was less than 24 hours after my peak day!

october 1 cycle

November Cycle (Third with Natural Cycles)

late october nc cycle

During this cycle, Natural Cycles decides that I’m not safe on CD 5 (I am).

It also gives me a green light on CD20. However, I would not be safe to have unprotected sex until the evening of CD21 due to peak day occurring on the first day of my shift.

oct 27 cycle

Conclusion

Natural Cycles does not follow the rules for STM charting.

When charting with STM, one must always wait until the evening of P + 3 and T +3 (three high temperatures and three days after peak). Both rules have to be met before you can have any unprotected sex. With weaker shifts, this wait can be a day longer.

Natural Cycles does not include cervical mucus. Since cervical mucus is what opens the fertile window (and not temperatures), this causes the method to lose efficacy. Cervical mucus is what allows sperm to survive and fertilize an egg. When cervical mucus dries up for 3 days and 3 high temperatures above the coverline occur, ovulation is confirmed for the cycle. Any app that leaves out cervical mucus, but still lets women have green days pre-ovulation, is misleading women and putting them at extra risk of pregnancy.

Another worrisome aspect of the app is that it frequently gave me a green light on the morning of the second high temperature. Temperatures can easily be disrupted, and new charters may not know their normal temperature ranges. Women need to be certain that ovulation is over before having unprotected sex. The third high temp (along with the third day after peak day) lets you know that ovulation is confirmed. Green lights after only one or two temps can put women at a risk of pregnancy, especially when cervical mucus isn’t taken into consideration. In fact, most STM methods require 4 high temps for women who don’t use cervical mucus (or cervical position). The reason that Natural Cycles may interpret shifts wrong is because of its static coverline. Some women may not see much of a change in coverlines from cycle to cycle. However, others may see a change. Having a static coverline can give users green days before they actually have a temperature shift.

Lastly, the app is misleading because it marks the day of ovulation. The only way to truly determine the exact day of ovulation is with a well-timed ultrasound. In fact, ovulation is most likely to occur over a period of about 4 days. Here is the link to the study that discusses which 4 days are the most likely. Since ovulation is likely up to day 2 of a temperature shift, this proves even further why it is so risky for Natural Cycles to give green lights on day 2 of a shift. In the other 9% of cases not hightlighted in the green box below, ovulation happened up to 3 or 4 days before a shift. This is why mucus is so important to record pre-confirmed ovulation. If there is mucus present, the sperm may live. Natural Cycles does not take enough factors into account when drawing its fertile window.

ovulation


If you are coming off of hormonal birth control or postpartum, this app may be an even worse choice for you. Those coming off hormonal birth control and postpartum may experience cycles changing in length and unexpected early ovulation even more so than people with regular cycles.

Anecdotally, I have seen many risky charts from Natural Cycles in the group I help moderate. You can find a link to this group here.

I highly recommend learning a real sympto-thermal method from an instructor and not wasting your money on the Natural Cycles app. I found it quite shocking that is was not very conservative when first learning about my cycles.

Check out my last post to learn how to start charting on a budget. Click here to sign up to learn to chart with me when my course opens in September 2019.

Here are some other articles on Natural Cycles that I recommend reading:

Natural Cycles’ FDA Approval: What’s The Big Deal?

5 Reasons I Don’t Use Daysy Or Natural Cycles

‘I felt colossally naive’: The Backlash Against the Birth Control App

Top 3 Fertility Awareness Mobile Charting Apps

One of the first steps many women take when starting their charting journey is downloading a period app. However, not all apps are created equal. A quick search in the app store comes up with dozens of apps. Sadly, very few of them are suitable for those using NFP or FAM. Most are just forms of the rhythm method, an unreliable from of birth control that comes up with predictions based on past cycles. My review only includes apps that allow women to track cervical mucus and basal body temperature–the two main signs in SymptoThermal Methods. I also tried to only pick apps that allowed self-interpretation. Learning how to interpret your own fertility signs is vitally important when charting.

1. Kindara

kindara2

Available on Android and iPhone.

Perk: The iPhone version allows users to share their whole chart.

Con: The Android version is known to be considerably more glitchy than the iPhone version. On Android, users can select “Share This Chart” and “With Community” to access a screen where they may screenshot their own chart.

Cost

Perk: Free Version Available

Con: Vaginal Sensation and more than four categories are extra. Premium version is $4.99 USD/month or $49.99 USD/year

 

SymptoThermal Rules Interpretation

Perk: I don’t know if Kindara has a monopoly on self-interpretation or what, but it’s one of the only apps to allow users to interpret and mark their own peak day and temperature shift. It also lets users mark their own coverline. This means that Kindara is good for those using a method like Taking Charge of Your Fertility (which has a higher coverline) and those using Sensiplan (which has a lower coverline). Lastly, Kindara has a very easy to read, clear chart. This is so important for users, and for those helping them.

Predictions

Kindara also does not predict fertile windows unless the user is trying to conceive (I recommend ignoring these even if trying to conceive. It is always best to do your own interpretations or ask an instructor if uncertain). It will predict menstruation based on average luteal phase length once it has enough data.

Other Features:

  • Users may share charts and get feedback from the community
  • Counts days past ovulation when shift is marked
  • Cervix Tracking (Height, Openness,Firmness)
  • Sex Tracking (Protected, Unprotected, Withdrawal, Insemination
  • OPK and Pregnancy Tests Tracking
  • Journal Available
  • Pairs with Wink Thermometer (syncs with the app via Bluetooth)
  • Emojis can be used in custom data

2. Fertility Friend

fertlity friend

Available on Android and iPhone 

Pro: Fertility Friend appears to work equally well on Android and iPhone

Cost

Pro: Free, paying is not necessary to be able to chart.

Con: VIP membership available starting at $9.99/month. This is a little expensive. The community sharing feature is only available to those who pay.

SymptoThermal Rules Interpretation

Perk: Coverline can be overridden under settings.  There are options to chart cervical mucus and temperatures.

Con: The app automatically interprets. For new users, this may be confusing. 

Predictions

Fertility Friend does predict fertile windows, period days, ovulation days, and a recommended test day for pregnancy. As always, users should rely on their own interpretations and get help from an instructor if needed.

Other Features:

  • Cervix Tracking (Height, Openness, Firmness)
  • Pregnancy and OPK tracking
  • Ton of Options for Mood, Health, Diet
  • Options for IVF, A.R.T., and Fertility Medication Tracking
  • Weight Data
  • Lightbox (With VIP compare photos of OPK and HPT tests)
  • Chart Overlay (Compare multiple cycles on one chart)
  • Sex Tracking (no option to differentiate unprotected versus protected)

3. OvuView

ovuview

Available on Android Only

Con: Pretty much the fact that it isn’t available on Apple products

Cost

Perk: Free (but with ads). One time payment of $4.99 to remove all ads. This is the cheapest app with the most features for custom tracking.

SymptoThermal Rules Interpretation

Perk: You can pick from multiple methods. Users may turn methods on and off.

Con: No self interpretation available. I have included it because unlike any other app that I have come across that interprets for users, the methods can be turned off. Users may play around with the methods to see if they can mark their chart according to their method’s rules. Turning off all settings would leave a chart for the user to interpret themselves even though they can’t self-mark.  Another con is that the temperature scale is very hard to read. Make sure to round or drop your temps. Ovuview may not always do this correctly.

Predictions

Ovuview predicts future fertile windows, ovulation days, and periods. Users should ignore this in favor of self-interpretation.

Other Features:

  • A ton of custom tracking like medications, moods, weight, etc.
  • Syncs with the Tempdrop device (This is wearable BBT. My review is coming soon. Full disclosure: this link earns me ten dollars if you use it to purchase the device)
  • Cool design. Users can choose their own chart colors, background, custom data colors, etc.
  • Cervix Tracking (Position, Opening, Texture)
  • OPK and Pregnancy Test Tracking
  • Fertility Monitor Tracking (None, Low, High, Peak)
  • Sex Tracking

Conclusion

There are limited options for self-interpretation when it comes to FAM apps. The three apps above are the best I’ve found when it comes to self-marking.

Look out for my next blog on how to chart using Google Sheets. I’ll be creating a Youtube video on how to do this yourself. This method of charting allows self-interpretation, custom data tracking, and users can chart on their computer or phone.

Google Sheets

chart 19

chart192