Choose the right device for you

Yes. However, we recommend only switching to a new measuring device at the start of a new cycle.



Please keep in mind that you should avoid switching measuring devices too often and you can't use two devices at the same time.

As a certified medical device, the Natural Cycles subscription helps keep your data safe. All birth control costs money both to make and supply. Our subscription fee means we can continue offering another hormone-free birth control option and doing research to promote women's health.

If you’re living in the US, the NC° Annual Plan is covered by most major insurance providers, and is available for FSA/HSA reimbursement.

You need to open the Natural Cycles app to sync your data from your thermometer to your phone, but you won't need to enter your temperature manually in the app. Our Bluetooth thermometer saves up to ten temperatures, but we recommend you sync daily to get your latest fertility status.

After you sign up for Natural Cycles and complete your purchase, we’ll send you a discount link that directs you to your exclusive Oura Ring offer.



If you’re an existing Natural Cycles user, you can access the discount link on the Buy Extra Supplies page in the Natural Cycles app.



Visit this page to learn more about using Natural Cycles with Oura.

Yes. If you're using a Gen3 Oura Ring or later you will also need to purchase a subscription to Oura to be able to use the integration.

If you already own a model with a temperature sensor (series 8 or later), you can get natural birth control powered by your Apple Watch. Download the Natural Cycles app to get started or learn more with our guide to using Natural Cycles with Apple Watch.