Rated 4.5 out of 5 stars
309 Reviews

kegg fertility tracker and kegel ball

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

Sale price$259 Regular price$269
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12 month Pregnancy Guarantee

If you are not pregnant within 12 months, you get 100% of money back.

One time purchase, no additional costs

FSA/HSA Qualified​

FDA registered​

Physician endorsed

1-year warranty​


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

Backed by science

Utilizes decades of research on cervical fluid and electrolytes, combined with precise cervical fluid sensing technology for accurate tracking of peak fertility

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.

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.


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).

Science behind kegg


Our customer support is available Monday to Friday: 8am-8:30pm.Average answer time: 24h

Product Reviews

See what others are saying about this product

Rated 4.5 out of 5 stars
Based on 309 reviews
Total 5 star reviews: 224 Total 4 star reviews: 37 Total 3 star reviews: 28 Total 2 star reviews: 9 Total 1 star reviews: 11
84%would recommend this product
309 reviews
  • NZ
    Niloufar Z.
    Verified Reviewer
    Rated 5 out of 5 stars

    We tried for two years for a second child and was told we have unexplained infertility and told to do IVF. Then I got pregnant in but miscarried at 8 weeks in December. I bought Kegg in January with my Flexible Spending card and used it for three cycle and I just found out I am pregnant.

  • SB
    Sarah B.
    Rated 5 out of 5 stars
    Must have

    Got pregnant the first month I used kegg! This is such a great tool. I even told my sister in law to use it after she had been trying for many months and guess what. Pregnant the first month as well. So thankful for our kegg babies!

  • C
    Verified Buyer
    Rated 5 out of 5 stars
    Got pregnant after only 1 cycle with Kegg!

    After 8 months trying to conceive, I was willing to try anything. After only one cycle with the Kegg, I got pregnant naturally! The app helped me validate my peak ovulation time and correlated with a positive ovulation test strip. I am also happy to now have a tool to strengthen my pelvic floor! The private facebook community is also awesome! I strongly encourage you to try it!

  • A
    Rated 5 out of 5 stars
    5 Stars

    I think I already love it. Used it today upon arrival (don’t worry I followed instructions and cleaned and charged it before hand) and the temperature it gave me aligns with my oral bbt that I took concurrently. I’m pretty impressed. I can’t wait to see what this journey looks like.

  • CS
    Courtney S.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars

    I am almost 38 and my husband and I were trying to conceive for the past seven months. We have four other children, so “it can’t be that hard, right?”. Well, month after month with a “not pregnant” sign on the pregnancy test, was so heartbreaking. I had resigned myself to the fact that maybe we were done. I had bought and used the LH ovulation kits, fertility supplements, and countless test. I came across Kegg on Pinterest—and thought—“with a 12 month, money back guarantee—they must be confident with their product.” I bought it—we used it for this past month. Lo and behold, I just found out I am pregnant!!!! I am praising God for this sweet blessing of a babe, and also for His gift to me in Kegg! Thank you all for using your gifts and intellect in such a wonderful, life-giving way! I am so grateful for Kegg!!!

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