Rated 4.5 out of 5 stars
303 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 303 reviews
Total 5 star reviews: 220 Total 4 star reviews: 36 Total 3 star reviews: 28 Total 2 star reviews: 9 Total 1 star reviews: 10
84%would recommend this product
303 reviews
  • 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!!!

  • EN
    Erika N.
    Flag of United States
    Verified Buyer
    Rated 4 out of 5 stars

    It was an okay experience. I got pregnant my first cycle using the kegg but this was our 6th month TTC. I got frustrated during use because of the time I chose to "check in". I told myself if I had to use it another cycle, I would change the time. But Lord-willing, this pregnancy will go well and I won't have to use this device for awhile. It also kind of stinks that I spent so much on a device to only use it once, haha. I do wonder if I held out one more month, I could have saved money (my cycles are regular & the fertile window that kegg estimated was consistent with when my windows normally are). But grateful nonetheless! Baby #2 coming soon!!

  • SD
    Shelbi D.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Good so far

    My experience with the tracker has been good so far but I wish you wouldn't send a gazillion emails

  • CL
    Cheyenne L.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Love it

    I really enjoy this device. It’s incredibly accurate when determining my fertile window. Also love the Facebook support group!

  • A
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars

    Kegg works! Have been trying for over 6 months and after just 3 cycles using kegg I got my positive test. It’s super helpful to track cervical mucus and there is a very supportive community. I highly recommend joining the Facebook group as well, there is a lot of good advice and people answer your questions!

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