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fertility tracker and kegel ball

Detect your fertile window and exercise your pelvic floor in 2 minutes a day

Customers rate us 4.6/5

$269  $259 


Or starting at $62.25/mo with ​afterpay logo

free shipping

Free Same-day Shipping. Order by 1 pm PST (Business days)


fertility tracker and kegel ball

Detect your fertile window and exercise your pelvic floor in 2 minutes a day

Customers rate us 4.6/5

$269  $259

Or starting at $62.25/mo with

afterpay logo
free shipping

Free Same-day Shipping.
Order by 1 pm PST (Business days)

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.

kegg is Risk-Free. Our Pregnancy Guarantee assures you that if you do not conceive while using kegg consistently for 12 months, you will be eligible for a full refund.

You’ll get a full refund if the kegg’s 12-month Pregnancy Guarantee rules are met. Read full policy rules here. 

kegg is recommended for women who:

  • Are trying to conceive
  • Do not experience or have a pelvic floor dysfunction
  • Are not within six weeks of giving birth or postpartum without the return of cycles
  • Are not currently lactating (producing breast milk)
  • Do not use any type of internal vaginal creams, medications, or ointments

You can read kegg’s full Recommended Use and User Criteria here

If you have irregular cycles and/or PCOS, you need to monitor your fertility in real time as it changes cycle to cycle. kegg was designed to track your fertility in real time each cycle to spot your full fertile window.

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. Additionally, with kegg, you only pay once and don’t worry about monthly costs on strips as there are no additional monthly costs.

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!


20,000+ couples have used kegg to conceive

More accurate than BBT.

Clinical evidence supports that kegg readings can more accurately determine fertile window than basal body temperature. With kegg, you can also detect your fertile window and unique cycle trends earlier than when testing with ovulation predictor kits (OPKs).

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?

Discover when you are most fertile with kegg.

BBT Tracker

Trying to conceive?

Discover when you are most fertile with kegg.