Natural Cycles birth
control, powered by Oura

As part of Oura’s sleep tracking functionality, Oura Ring continuously measures your temperature trend data while you snooze, generating almost 1,500 data points each day. Natural Cycles then uses all of that data to determine an “absolute value,” which is the measurement you’ll see in the Natural Cycles app — and what’s used to calculate your fertility status.

Here’s how to use them together:

1. Wear your Oura Ring while you sleep
2. Wake up and sync your Oura Ring with the Oura App
3. Check the NC° app for your daily fertility status

If an Oura member gives explicit consent, ŌURA will only share sleep data with Natural Cycles, which includes temperature trends, HR, sleep length, and sleep stages. The partnership is a one-way integration, and Natural Cycles does not share any sensitive data with ŌURA.

Both Oura and Natural Cycles take your privacy and data very seriously and you can revoke your consent to share your information at any time.

You can review the privacy policies of both companies below:
Oura Privacy Policy
Natural Cycles Privacy Policy

Yes. The effectiveness of Natural Cycles is supported by clinical evidence, which shows Natural Cycles is 93% effective under typical use. Under perfect use, i.e. if you never have unprotected intercourse on Red Days, Natural Cycles is 98% effective.

Forgetting to measure doesn’t impact how effective Natural Cycles Birth Control is at preventing pregnancy. However, if the app doesn't have enough data due to poor sleep or forgetting to measure, you might get more Red Days (when you’ll need to abstain from sex or use protection).

You don’t have to wait for Natural Cycles to learn your cycle before you can start using it — Natural Cycles is effective from the first day of use.

After purchasing your Oura Ring, you'll see a direct link from the confirmation page to claim your Natural Cycles free trial. You'll also receive an email from Oura that will include details and a link to claim your Natural Cycles free trial. Please note that the free trial is only available to new users.

Oura
Oura Ring ranges from $249 to $499 USD, depending on the style and finish. The Oura Membership, which is required to use the Natural Cycles integration and offers members a more personalized and robust Oura experience, is $5.99 USD per month. The first month is free with the purchase of a new ring.

Natural Cycles
Natural Cycles offers two subscription options — annual and monthly. The annual subscription cost is $149.99 USD (billed yearly) and the monthly option is $21.99 USD per month.

After your 28 day free trial, you will be automatically billed by Natural Cycles for your annual subscription.

Both Oura and Natural Cycles are eligible for HSA and FSA. And, if you live in the US, you can now get your Natural Cycles subscription reimbursed through your insurance provider.