Temperature-powered birth control

Now measure your temperature trends overnight with Oura Ring and wake up to your daily fertility status.

Natural Cycles is the only FDA Cleared birth control app that uses body temperature to prevent and plan for pregnancy naturally.

How it works

Sleeping with Oura

Measure your temperature trends overnight by wearing your Oura Ring to bed.

Using Oura and Natural Cycles

See your fertility insights in the Natural Cycles app in the morning.

How to get started

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I don't have an Oura Ring

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Sign up for Natural Cycles

Purchase an Oura Ring (with the exclusive offer) and activate the Oura Membership

Pair your Oura Ring to the Natural Cycles app

Wear your Oura Ring to bed to seamlessly measure overnight

Already use Natural Cycles?

Claim your Oura discount by visiting the Buy Extra Supplies page in the Natural Cycles app

I have an Oura ring

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Sign up for Natural Cycles (NC°) and make sure your Oura Membership is activated

Log in to the NC° app and pair your Oura Ring

Wear your Oura Ring to bed to seamlessly measure overnight

Already use Natural Cycles?

Claim your Oura discount by visiting the Buy Extra Supplies page in the Natural Cycles app

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Enjoy exclusive offers

10% off Natural Cycles Annual Plan

First month of Oura Membership included

$40 off Oura Ring

Let's compare birth control effectiveness

Effectiveness of Natural Cycles is the same across all measurement devices

HORMONAL

HORMONAL

A package of contraceptive pills

93%

Contraceptive Pill

the contraceptive ring

93%

Vaginal Ring

The hormonal IUD

99%

Hormonal IUD

NON-HORMONAL

A phone with the nattural cycles app

93%

Natural Cycles°

illustration of a male condom

87%

Condom

Copper iud

99%

Copper IUD

NON-HORMONAL

Percentage of typical users who did not get pregnant with the method over 1 year of use. Read more.

Fertile screen Natural Cycles and Oura

Join 3 million+ users worldwide

Katie

Nothing short of amazing! We just welcomed our baby girl, all thanks to NC°.

Katie

Joined NC° in 2022

NC° Plan Pregnancy
Dr. Katara

Has got to be THE best natural birth control on the market. 10/10 recommend!

Dr. Katara

Joined NC° in 2021

NC° Birth Control
Sam

NC° and Oura sync to give me fast, reliable results that can’t be beat.

Sam

Joined NC° in 2023

NC° Birth Control
Yulia

With accurate, seamless measuring, NC° & Oura enable me to feel confident in my body

Yulia

Joined NC° in 2023

NC° Plan Pregnancy
Bethany

I’ve experienced significantly less pelvic pain... and our intimacy couldn’t be better.

Bethany

Joined NC° in 2023

NC° Birth Control

4.8

five stars

40k+ ratings in the App store

Why users love Natural Cycles

Natural Emoji

All-natural

Hormones Emoji

No hormones or side effects

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Understand your body better

Why users love Oura Ring

Track sleep emoji

Track sleep

Monitor Stress emoji

Monitor stress

Measure activity emoji

Measure activity

Common questions

Natural Cycles

Unlock fertility insights effortlessly with our most popular integration