Try kegg risk-free with our 12-month pregnancy guarantee


fertility tracker and kegel ball

Detect your fertile window and exercise your pelvic floor in a few minutes a day


Same-day shipping. Order by 5 pm PST (Business days only)


fertility tracker and kegel ball

Detect your fertile window and exercise your pelvic floor in a few minutes a day


Same-day shipping. Order by 5 pm PST
(Business days only)

kegg is an easy-to-use medical fertility tracker designed to help women maximize their chances of conception through its sensing of cervical fluid. Following a daily reading – which takes only two minutes to complete – kegg analyzes the quality of cervical mucus allowing the user to see when their full fertile window occurs.

After the daily reading, the FREE kegg mobile app displays the daily results, cyclical trends, and fertility predictions to help you optimally time your trying to conceive efforts.
See kegg’s Recommended Use and User Criteria here.

A “12-month Pregnancy Guarantee” means you’re protected if you purchased the kegg fertility tracker, used it continuously for at least (1) year, and didn’t get pregnant during that time.

You’ll get a full refund if the kegg’s user criteria, recommended use, and 12-month  Pregnancy Guarantee rules are met. Read full policy rules here. 

If you have irregular cycles and/or PCOS, kegg may help you. There is a growing community of women with PCOS and irregular cycles who have been successful with kegg. Conventional fertility tracking methods can be especially frustrating because the fertile window does not fall consistently at the same time. kegg allows you to see a potential fertile valley open as your readings move downwards, allowing you to make actionable decisions.

Learn more about kegg users with PCOS here and kegg users with irregular cycles here.
  • keggᵀᴹ fertility tracking kegel ball
  • complete charging set
  • user Manual

Our services are included free of charge:

  • free mobile app access – no subscription required
  • online chat support 7 days a week
  • dedicated support team 
  • 12 month Pregnancy Guarantee
  • supportive Private Facebook Group
We do our best to assist you during your fertility journey! Our company offers:
  • 1-year warranty from the date of original purchase, against defects due to faulty workmanship or materials.
  • 30-day return policy in case you would like to return your kegg once it has been delivered. kegg is an intimate product, so the package must be sealed and the kegg unused for it to be returnable. An unused product with a broken box seal can be returned, however, a $110 disposal fee will be deducted from your refund.
Best Ovulation Tracker
Ovulation Cycle Tracker


Easily fits into your busy routine in just two minutes a day and no need to wear it overnight.

Cervical fluid and electrolytes

Backed by science

With decades of research on cervical fluid and electrolytes. kegg shows when you’re most likely to conceive.

Cervical fluid sensing technology


Precise cervical fluid sensing technology to track your unique peak fertility and to plan ahead with confidence.

Better timing - Trying To Conceive

Better timing

Gone are the days of missing the crucial part of your fertile window. Forget the hassle of costly OPK sticks and LH strips.

early detection fertile window

Personalized data

Predictions adjust each cycle to your body's uniqueness kegg displays results instantly on a FREE kegg app, so nothing is left up to chance.

Best Fertility Monitor


Optionally doubles as a kegel ball to support your pelvic floor exercises. Just a few minutes every day!

Reasons why women love kegg

Reasons why women love kegg

Get the time just right

With kegg, you can detect your fertile window and unique cycle trends earlier and more precisely than when testing with ovulation predictor kits (OPKs) or basal body temperature (BBT) alone.

Pregnancy Ava Chart

Got a question?
Get your answer

kegg is an intuitive fertility tracker that measures changes in electrolyte levels of cervical mucus —the golden metric to pinpointing your fertile window within each menstrual cycle. By using advanced sensing technology known as impedance, kegg can detect your fertile window using your unique cycle data.

Following the daily reading, which takes around 2-3 minutes, kegg will send your kegg data to the cloud for analysis. In real-time, the device connects to a mobile app that displays your reading’s results, cyclical trends, and fertility predictions. With consistent, once a day use, you will gain deeper insight into your own unique fertility pattern. 

More information here. 

Absolutely! kegg can help you confidently track your fertility, allowing you to optimally time intercourse/insemination. Many women who have been trying to conceive for years have been successful, thanks to kegg. What is unique about kegg is that instead of focusing on the day of ovulation (which is only one day when you are fertile) kegg focuses on identifying your whole fertile window. Knowing your full fertile window and optimally timing intercourse/insemination can quadruple your chances of getting pregnant.

Yes! And there are many stories of women in their 40s who successfully conceive using kegg. Kegg is recommended for women in their reproductive years, 21 years or older, who ovulate and have cycles. kegg helps women identify their fertile window in order to optimally time their trying to conceive efforts. 

Many women in their 40s report that by using kegg they feel more confident they are maximizing their chances of conception as they are not missing valuable days of the fertile window, when compared to using other fertility tracking methods, such as detecting the LH surge or recording their basal body temperature. Every egg counts and with kegg, you can be sure you are timing your efforts accurately.

Many women with PCOS share that tracking their fertility is especially challenging. There is a growing number of women with PCOS who turn to kegg to successfully track their fertility.

Learn more about getting pregnant with PCOS here.

kegg is not recommended as a contraceptive device. kegg can be used as a complementary tool to your preferred fertility awareness-based method (FABM). The kegg algorithm is not to be used as a birth control tool. The kegg algorithm has not been designed nor tested for pregnancy prevention. You can use kegg data and trends to compliment your own primary choice of fertility awareness method.  Here are real examples of kegg users who have been using kegg with:

Sympto-Thermal Method and kegg (body basal temperature and kegg) / kegg app is integrated with Tempdrop

Creighton Method and kegg

Billings Method and kegg

LH testing and kegg

You can also learn more about your kegg data charts

BBT Tracker

Trying to conceive?

Distover when you are most fertile with kegg.

BBT Tracker

Trying to conceive?

Discover when you are most fertile with kegg.

Read kegg success stories

Verified Reviewer
Read More
Works for irregular PCOS cycle!
I have fairly regular irregular cycles due to PCOS if that makes sense! My cycles were anywhere from 33-39 days long and my follicular phase and luteal phase would also vary in length. I had been tracking my BBT to see that I appeared to be ovulating every cycle, but wasn't conceiving. Using Kegg, I was able to see that I was actually ovulating a couple of days after my shift temp started. It was very eye-opening to see and allowed us to successfully conceive. I don't think I would've been successful had I not had my Kegg fertility tracker! I would definitely recommend this product to anyone!
Verified Reviewer
Read More
Finally Pregnant!
After several years of only cycling every 3-6 months with no clear answers from multiple doctors, I’m finally going to be a mom in May! All thanks to Kegg! Both the tracker and app are super easy to use and give the user sooo much insight into their fertility. Using Kegg, I was able to see a rise in the fertile quality of my cervical mucus and confirm ovulation with LH tests and temperature rise. All of this leading to my sweet baby that is due in May and I am so grateful. If you are hesitant to buy Kegg at all, I fully recommend that you go for it. You won’t regret it!
Teresa Z.
Teresa Z.
Verified Reviewer
Read More
We had been trying to conceive for over a year when my husband found the Kegg. I was skeptical at first, but it was much easier to use than urinating on sticks and interpreting those lines. It was flexible with my hectic work schedule. After using it for 3 to 4 months, we are now expecting. I am 16 weeks currently.

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