Download the app now to track your period and start getting cycle predictions right in your pocket. For even *smarter* predictions, log your Modern Fertility Ovulation Test results.
Predict your 2 most fertile days
Get better predictions using your hormones
Track your ~entire~ cycle on one calendar
No subscriptions or ads. Ever.
Connect with experts + people who get it
Supercharge your cycle predictions
Track your periods using the app on its own — or add your *actual* hormone levels for even smarter predictions.
Scan and log your Ovulation Test
Use the built-in scanner for an instant read on your Ovulation Test results, giving you a look into your hormones and future cycles.
Pinpoint the best days to test for pregnancy
Opt in for *personalized* recs for the best days of your cycle to take pregnancy tests.
Connect in the Modern Community
Access our free community in the app to connect with others and get your fertility Q’s answered by experts.
Why use the app?
To try for kids
If you're trying for kids, predict the days sex or insemination will give you the best chances of getting pregnant.
To track your cycle
If you're *not* trying for kids, track your periods and get cycle predictions so you can plan ahead.
To connect with a community
~All~ people with ovaries can use the app for real talk on fertility with people who just get it.Explore the App
The ovulation detective
Follow your hormones
The Modern Fertility Ovulation Test measures luteinizing hormone (LH) in your urine. Why LH? The brain triggers an LH surge before you ovulate, making it an excellent predictor of ovulation. The app scans and logs your Ovulation Tests so you can catch your LH surge and your 2 most fertile days.
For the planners out there
Get answers you can trust
The Modern Fertility Pregnancy Test is 99% accurate at detecting pregnancy from the first day of your missed period1 — but you can start testing as early as 6 days before. Track your cycle (and test results) with the app and get a countdown for the best days to test.
More fertility essentials
We make fertility essentials for people with ovaries
Modern Fertility and Ro products are designed to give you more agency over your reproductive health, so you can own the decisions impacting your body and your future.
Modern Fertility Hormone Test
The most comprehensive fertility hormone test you can take at home to be proactive about your fertility.Learn more
Ro Sperm Kit
A trusted, easy, and fast way to test and store sperm.Learn more
Modern Fertility Ovulation Test
Find your 2 most fertile days, predict ovulation, and get in sync with your cycle.Learn more
Modern Fertility Pregnancy Test
Test if you’re pregnant and trust the result—plain and simple.Learn more
Modern Fertility Birth Control
Connect with a provider to get a prescription for the pill if it's appropriate.Learn more
Modern Fertility Prenatal Multivitamins
Developed with OB-GYNs to prep your body now for kids whenever.Learn more