Your kegg start-up guide
Hello! We are honored to be a part of your fertility journey! We know how challenging it can be at times- we are here to support you along the way.
This is your guide to help you get started with kegg. If any questions come up, please reach out to our team. We're always happy to help. Let's get started!
Here are a few ways to set yourself up for success with kegg
Consistent daily use
Consistent daily kegg use is key to tracking your cervical mucus and identifying your fertile days. Make sure to turn on the notifications in the kegg app or set your own alarm!
Note: You do not take readings during your period, bleeding, or spotting.
Choose a target time
Your kegg reading must be completed in the same two hour window each day. A kegg reading should not be taken within 8 hours after intercourse, so consider this when you choose your target time.
Focus on fertile valleys
Your kegg chart will give you real-time insights. When your cervical mucus is most fertile, you will see a dip in your chart, known as the ‘fertile valley.’
Join the conversation
Our private Facebook Community is a great way to connect with others on similar journeys. In addition to our Customer Support team, you can also get assistance understanding your kegg chart in the community.
Connecting your kegg app
When and how
to use kegg
Understanding your kegg chart
Charging, cleaning + storing
Irregular cycles
or PCOS
Frequently asked
questions
Connecting your kegg app
Once the app is downloaded, follow the steps to register your kegg and set up your account.
Before your first reading, ensure Bluetooth AND location services are enabled on your phone.
Allow the app permission to connect with your kegg.
Follow the prompts to complete your kegg profile. Once completed, you're ready for your first reading!
When and how to use kegg
You can begin using kegg at any point in your cycle, except during days of bleeding or spotting. Here’s how to get started and use kegg effectively:
Preparation
Rinse kegg with warm water before use for easier insertion, but avoid lubricants.
Choosing Your Reading Time
Set a target time for your daily reading and stick to a 2-hour window (1 hour before to 1 hour after your chosen time).
Example: If your target time is 9am, you can take your reading anytime between 8am and 10am.
If you miss your window, simply skip that day. Readings taken outside this time will show as a red dot, indicating they may be less reliable.
You can adjust your target time at the start of a new cycle by going to 'Profile' then 'Measurement Time' in the app.
Taking Your Reading
App Setup:
Open the kegg app and select “KEGG” on the home screen. Turn on kegg by pressing the button on its side.
Get Ready:
Find a comfortable position (standing, lying down, or sitting). When prompted, insert kegg fully into the vagina, ensuring the egg portion is completely inside. Hold kegg at the bend of the tail to keep it steady.
Take the Reading:
Choose between a kegg reading only or a reading with a 5-minute kegel routine. Monitor the reading progress on the app. Two vibrations will signal when the reading is complete.
After the Reading:
Remove kegg and hold it near your phone to sync the data.
Once synced, wash kegg with water (mild soap optional), taking care around the gold band and tip to avoid scratches. Air dry or use a soft cloth.
Only charge kegg when necessary; avoid daily charging.
Additional tips:
Wait at least 8 hours after intercourse before using kegg, as residual semen can affect readings. However, kegg can be used right before intercourse or insemination.
Use kegg on all non-bleeding days, including the days leading up to and after your fertile window.
Understanding your kegg chart
How kegg works
kegg uses advanced impedance technology to track your cervical mucus changes. A gentle electrical signal is sent through the mucus, and kegg measures the resistance it encounters:
Higher resistance: Associated with less fertile mucus, plotted higher on the y-axis.
Lower resistance: Associated with more fertile mucus, plotted lower on the y-axis.
During your fertile window, your kegg readings will form a valley or dip. The entire valley represents your most fertile days, making it the optimal time to conceive.
Your first kegg readings
After your first reading, you’ll see a small green circle on your chart.
Two consecutive readings will connect with a thin green line.
After three readings, a dark green trend line will appear, highlighting overall patterns.
Fertile window predictions
Your kegg chart will show a 5-day fertile window, shaded green:
Days 1-2: "Possible"
Days 3-5: "Likely"
This prediction helps estimate when your fertile valley will likely form. However, it doesn’t guarantee ovulation timing, as cycles can be affected by factors like stress or illness.
For the first cycle, predictions are based on the cycle length you entered during setup.
With consistent use, kegg personalizes these predictions based on your unique data.
The prediction may shift if a valley is detected earlier or later than expected.
Real-time insights
Your kegg chart will show a 5-day fertile window, shaded green:
For cycles 21-40 days long, you’ll see an estimated fertile window from day one.
For cycles longer than 40 days, kegg won’t show a predicted window, but you can still rely on real-time readings to track your fertile days
Important: If your cycle is atypical, you can exclude it from the algorithm. Go to 'Cycle' > 'View Cycle Stats' > 'Exclude Cycles'.
Confirming the fertile window
At the end of your cycle (when you log a new period), kegg will either:
Draw a solid line to confirm the fertile window based on your data
Draw a dashed line if there were too few readings to confirm
Even if predictions shift, you can trust that timing intercourse during valleys maximizes your chances of conception.
The fertile valley explained
As cervical mucus becomes more lubricative and more hospitable to sperm, kegg readings trend downward, creating a fertile valley:
The start of the valley (the readings moving downwards on the y-axis) indicates the fertile window is opening—time to get busy!
A rise out of the valley suggests the fertile window is coming to a close.
Ovulation typically occurs just before the valley ends, either the day before the rise or the day of the rise out of the valley. However, ovulation cannot be confirmed with kegg.
Continue timing efforts during the rise, as the egg remains viable for about 24 hours after ovulation.
Valley variations and multiple valleys
Every fertile valley is unique. Some may be subtle, while others are pronounced. It’s also normal to see:
Dips before and after the fertile window that are not fertile
Multiple fertile valleys are possible, especially if you have irregular cycles or PCOS. This occurs when a valley is not successful for ovulation.
If your cycles are regular, you’re less likely to see multiple fertile valleys. Keep in mind that multiple valleys are normal, and a dip early and late in your cycles are not typically multiple fertile valleys and instead natural fluctuations seen with hormonal fluctuations throughout the cycle. However, if you experience another valley around your expected fertile window, treat it as potentially fertile unless confirmed otherwise by other tracking methods like basal body temperature, PdG tests, progesterone blood draw, or ultrasound.
Example chart: Multiple valleys in a cycle
Below is an example of a chart with multiple valleys:
After her period, the user noticed a dip, followed by a rise—this was not her fertile window.
As she entered her predicted fertile window, readings trended downward, indicating the start of her true fertile valley.
A secondary valley appeared in the luteal phase, which is a normal variation due to changing hormone levels.
Key takeaways
Track consistently: kegg’s predictions and confirmations improve with consistent use.
Focus on valleys: Timing efforts during valleys increases your chances of conception.
Need help? Reach out to our support team here if you have any questions.
Charging, cleaning and storing your kegg
Charging your kegg
Insert the cable into the charging cradle. Push firmly to ensure the cable is fully inserted into the cradle.
Insert the other end of your cable into a UL listed charging block and plug it into a working wall outlet.
Insert your kegg into the charging cradle. Be sure to press kegg down into the cradle, as kegg’s gold plated tips need to connect with the gold contacts at the bottom of the charging cradle.
When charging, your kegg's light will gently pulse a warm yellow. When charging is complete the light will be solid green.
Cleaning your kegg
After each use, gently hand wash your kegg under warm running water. You may use a mild soap if you wish. Ensure to take extra caution washing the metal bands and tip to prevent scratching and damage. Rinse your kegg in water before use. Note: Avoid using hot water as this can damage your kegg.
Storing your kegg
When not in use, store your kegg in a safe place where it can freely access air (and away from animals who tend to love kegg as much as we do!)
For long-term storage, do not store kegg in an airtight container or bag. You can safely store kegg in a soft satchel or sock.
Tracking irregular or PCOS cycles with kegg
Understanding how the prediction works
The fertile window prediction is made in advance based on past trend data (or the initial cycle length entered at start up for your first cycle with kegg).
When cycles are irregular in length and/or when the user has PCOS, the user should watch their readings to identify when the fertile valley is forming and rely less on the fertile window prediction (if present).
If cycles are outside of the 21-40 day cycle length range, there will not be a fertile window prediction. Users with cycles outside of this range should also watch their readings to identify their fertile valley(s) and time intercourse or insemination during those valleys.
Finding your 'fertile valleys'
To estimate the time frame during which time the fertile window may occur, you can estimate when your fertile window has fallen in previous cycles.
The luteal phase is the time between ovulation and the start of a new cycle. An ideal luteal phase is 11-17 days, most often about 12-13 days. The luteal phase length tends to remain fairly consistent from cycle to cycle.
Typically, the fertile window extends for 4 days before ovulation and ovulation day itself. This means the female reproductive tract can nourish and sustain sperm for a maximum of 5 days.
While it is a good idea to consider each valley as potentially fertile in irregular cycles, keeping this information in mind can help you identify when the fertile valley is most likely to occur.
Aim to time sex/insemination during the valleys in the kegg readings to ensure you do not miss an opportunity to conceive.
It is more common to see multiple fertile valleys in PCOS, irregular cycles, and/or cycle lengths greater than 40 days. This occurs when the body prepares to ovulate but does not achieve the final step, ovulation. When this happens, the body may make another attempt to ovulate resulting in another fertile valley. The valleys may differ greatly, in length and depth
Ovulation
Ovulation cannot be confirmed with kegg. You can confirm ovulation by tracking your basal body temperature (BBT), PdG testing (the urine metabolite for progesterone), progesterone blood test, or ultrasound.
Tracking your basal body temperature can be very useful in determining if a valley is (or is not) successful for ovulation. Once the user confirms ovulation with a temp rise, they can safely assume they have ovulated and do not need to treat future valleys as potentially fertile.
Note: LH testing cannot confirm ovulation. It is possible to see LH rise multiple times in a cycle, and for LH to rise without achieving ovulation.
PCOS and irregular cycle examples with kegg
In this first example below, the user experienced multiple fertile valleys.
This user timed her efforts during the valleys. A few days after her first valley and rise she found her trend line dropping again and decided to have sex on those days too just in case her first valley wasn’t successful in achieving ovulation. This was followed by an 11-day luteal phase. Her typical luteal phase is 11-12 days. If the first valley had been successful, her period would have come much sooner, around cycle day 29, therefore this confirms the first attempt at ovulation was not successful.
A classic feature of PCOS is multiple or sustained LH surges.
In this second example, the user experienced two separate LH surges. This user noted in her chart when she had an LH surge. Note the two “dips” or valleys and the two positive LH test results, on CD 16-17 and CD 31. The first valley was not likely successful for ovulation as a luteal phase length of greater than 17 days is uncommon, unless the user is pregnant. The second valley may have been successful for ovulation around cycle day 31 or 32.
Another common occurrence for women with PCOS is many days in a row with positive LH results. Without basal body temperature tracking, serum hormone testing, urine PdG testing, and/or ultrasound testing throughout the cycle, we cannot confirm when or even if ovulation was successful.
In the chart below, you will notice this user had several days of a positive LH result. Her kegg results helped guide her, as she noted her readings continuing to descend, followed by a rise. She then had a typical 12-day luteal phase.
FAQs
What day do I mark as the first day of my cycle?
Day 1 of your cycle is the first day of blood flow. Spotting does not begin a new cycle.
Where is my first kegg reading?
Each kegg reading is plotted in the cycle view with a small white circle outlined in green. As you take more readings, you will see the readings connect together as a light green line. As you take more readings, a dark green trend line will appear.
Is there a number value with my reading?
kegg does not display numeric values with each reading. Impedance readings vary greatly between women and even from cycle to cycle. The overall trend is what suggests when the user is in the fertile valley.
Will my fertile window prediction change with each reading?
The fertile window prediction is made at the start of a new cycle. The prediction does not update with each reading, however, as the cycle progresses, you may see your prediction move. As long as you time your efforts during your fertile valley, you will have optimally timed your efforts.
I am seeing more dips after my fertile window. Does this mean anything?
It is common to see fluctuations such as valleys and hills in your kegg readings after your fertile window. There are many changing hormones throughout the luteal phase.
Unlike basal body temperature, kegg readings do not need to remain elevated after the fertile window.
If you suspect you did not successfully ovulate during your fertile window prediction, continue to watch for valleys in your trendline and consider those days as potentially fertile.
I am not seeing a fertile window prediction. How come?
If your estimated cycle length is longer than 40 days or shorter than 21 days, there will not be a fertile window prediction displayed for the current cycle.
You can view your estimated cycle length in the Cycle View under “View Cycle Stats”. Continue to watch for valleys in your trendline and consider those days as potentially fertile.
If you had a cycle that was atypical for you (due to anovulation, pregnancy, pregnancy loss, in the postpartum period, etc) you can tell the kegg app to not factor this cycle length into your prediction by navigating to Cycle, View Cycle Stats, then Exclude Cycles. Select the cycle of atypical length.
If your cycle exceeds kegg’s predicted cycle length, kegg will display “fertility” with a “--”. If a new period is added, and your estimated cycle length is within 21-40 days, you will see a fertile window prediction in the new cycle.
When should I use the cycle exclude feature?
If you experience an atypical cycle length, such as during illness/travel, a miscarriage, or an anovulatory cycle, you may wish to exclude the cycle from being included in kegg’s algorithm as the atypical length may impact kegg’s fertile window prediction.
To exclude a cycle, select “View Cycle Stats” on the “Cycle” view. Next, select “Exclude cycles” and select the cycle you wish to exclude from kegg’s prediction
Can I add temperature tracking?
Yes! You may optionally input your basal body temperatures (BBT) in your daily notes.
On the kegg chart, you may turn on and off the temperature display by tapping on the small thermometer icon in the upper left hand corner of the cycle view.
If you are a Tempdrop user, you can sync your Tempdrop to the kegg app to view your temps and kegg data together. Navigate to Profile then Apps & Services to set-up the integration.
Can my kegg readings indicate if I am pregnant?
No. There is no specific trend that indicates if a user is pregnant or not, and pregnancy charts can vary greatly among kegg users! It is normal to see variation in kegg readings in the luteal phase both in pregnancy and non-pregnancy cycles.
Should I keep using kegg after my positive pregnancy test?
Congratulations! Log your pregnancy test results in the kegg app and discontinue kegg use.