Birth control built around you

An FDA Cleared, non-hormonal, non-invasive way to take control of your fertility.

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Designed to keep your data safe
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4.8Star IconApp Store

57.7K+ global ratings

Is Natural Cycles° right for you?

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What can we help you with?

Prevent pregnancyPrevent now, plan laterGet pregnant fasterTrack my pregnancyRecover from childbirthHaven't decided yet

How it works

Choose a device

Use our free thermometer when you sign up. Or sync our app with your Apple Watch or Oura Ring.

Take your temperature

Use your chosen device to take your temperature right when you wake up.

Open the Natural Cycles app

The app shows you your fertility status, cycle trends, and helpful insights.

Let's compare birth control effectiveness

NON-HORMONAL

Natural Cycles°

A phone with the nattural cycles app

93%

Condom

illustration of a male condom

87%

Copper IUD

Copper iud

99%

HORMONAL

Contraceptive Pill

A package of contraceptive pills

93%

Vaginal Ring

the contraceptive ring

93%

Hormonal IUD

The hormonal IUD

99%

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

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Natural Cycles

Backed by science, the Natural Cycles° algorithm is powered by your body temperature.

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Inside the app

Unlock

Our FDA Cleared algorithm uses your temperature to identify fertile and non-fertile days.

Track

Log mood, energy, and more to see how your cycle impacts you.

Learn

Customized insights and expert content to help you understand your unique experience.

Hear directly from Cyclers like you

4.8

57,7k ratings in the App Store

Michelle

I feel empowered knowing about my body’s natural processes.

NC° Birth Control

Bethany

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

NC° Birth Control

Dr. Katara

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

NC° Birth Control

Shadow

NC° helped me understand my body, cycle, and the best time of the month to get pregnant.

NC° Plan Pregnancy

Katie

Nothing short of amazing! We just welcomed our baby girl thanks to NC° 🥰

NC° Plan Pregnancy
See more

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#NaturalCycles

Have you ever wondered about the different types of vaginal discharge? 💭 From cervical mucus to menstrual blood, there’s plenty going on down there every cycle. There are many normal discharge types, as well as some fluids that can be a cause for concern. Follow the link in our bio to check out the full article & learn more 🔗In Europe and the U.S., condoms have to be rigorously tested and cleared by regulators 🔍 Before being packaged and sold, each individual condom is subject to testing — if a flaw is found with that condom, then the whole batch is discarded 🚮 Therefore, while possible, it’s highly unlikely that condoms break because of manufacturing. ⁠ ⁠ When using Natural Cycles as birth control, you’re recommended to use condoms if you have sex during your fertile days ❤️ On non-fertile days on the other hand, you don’t need to use protection 💚 So, if you’re already a condom user, switching to Natural Cycles can mean using fewer condoms. When it comes to effectiveness, Natural Cycles’ effectiveness rates (93% with typical use and 98% with perfect use) include pregnancies that happen due to the condom breaking.⁠ ⁠ External condoms are the most effective contraceptive method available when it comes to protecting against STIs. They are over 90% effective against HIV, Hepatitis B, and gonorrhea, and also significantly lower the risk of getting several other infections like chlamydia and syphilis. However, there are a couple of STIs which condoms are less effective against. For example, while condoms do offer some protection against genital herpes and HPV, these may spread by skin contact with parts that aren’t covered by the condom. It’s always a good idea to speak with your healthcare professional if you’re concerned about an STI 🧑‍⚕️ Follow the link in our bio to learn more about condom effectiveness, some of the advantages and disadvantages of using condoms, and more! 🔗This often overlooked condition is actually very common, affecting 10% of us worldwide 🌍 However, lack of awareness around endometriosis leads to delays in diagnosis, and stops those with the condition from getting the treatment they need. Follow the link in our bio to learn more 🔗She's outside touching grass !! 💜🙌
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Common questions

You must be over the age of 18.Does not protect against STIs.

Natural Cycles is 93% effective with typical use, 98% effective with perfect use. No method of contraception is 100% effective. Natural Cycles does not guarantee that you cannot get pregnant, it only informs you whether and when you can become pregnant based on the information that you enter into the application.