Birth control built around you

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

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Is Natural Cycles° right for you?

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.

NC Devices
Measure with NC
Holding NC App
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How effective are other forms of birth control?

NON-HORMONAL


Natural Cycles°

Natural Cycles App

93%

Copper IUD

Copper IUD

99%

Condom

Condom

87%

HORMONAL


Hormonal IUD

Hormonal IUD

99%

Vaginal Ring

Vaginal Ring

93%

Contraceptive Pill

Contraceptive pills

93%

Natural Cycles

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

Inside the app

unlock

Unlock

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

trackers

Track

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

ovulation prediction

Learn

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

Hear directly from Cyclers like you

4.8

40K+ ratings in the App Store

Michelle

Michele

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

NC° Birth Control

Bethany

Bethany

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

NC° Birth Control

Dr. Katara

Dr. Katara

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

NC° Birth Control

Shadow

Shadow

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

NC° Plan Pregnancy

Katie

Katie and her family

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

NC° Plan Pregnancy

Join Our Community

#NaturalCycles

Most of our Cyclers rely on Natural Cycles as birth control but if you choose to switch modes to start trying for a baby, the app will look a bit different 📲 Instead of seeing only Green and Red Days, you’ll see a gradient of pink colors that indicate how likely you are to be fertile 💗 This helps those trying to conceive to time sex on their most fertile days more precisely 🤏Natural Cycles has a comprehensive privacy protection program called NC° Secure, that is included with every Natural Cycles subscription 💪 The program includes advanced data protection, including encryption and pseudonymization, to keep your data secure. ⁠
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As part of NC° Secure, you also have the option to Go Anonymous if you need an extra layer of protection for your identity, for example, if your data is at an increased risk. If you Go Anonymous, your personal identifying information will be separated from your fertility data, which means that no one — not even us at Natural Cycles — can link your NC° data to you 🔒 Follow the link in our bio to learn more 🔗You can learn more about our certifications via the link in our bio 🔗PMDD usually occurs one to two weeks before your period and can have significant effects on you both physically and emotionally 🫂 While the symptoms of PMDD are similar to those of PMS, PMDD symptoms can have a more significant effect on your life. This can mean reducing your ability to work, socialize and maintain healthy relationships 👥 ⁠
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The first step to getting a diagnosis is to visit your healthcare professional 🧑‍⚕️ They may then ask you to keep a detailed, day-by-day record of your symptoms with some daily questions to complete 📝 You’ll probably be asked to record these for a couple of months to help identify a possible pattern over the course of several cycles 🗓️ You may also be asked about your medical history, and have a physical examination to rule out any other medical conditions 🩺⁠
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PMDD can be difficult to diagnose, and it is not well-known even within the healthcare community, making diagnosing PMDD often tricky 🧐 ⁠
⁠
“At Least 31 Million Women Live with Chronically Debilitating PMDD.” Stylist.co.uk, 2024, www.stylist.co.uk/health/31-million-women-pmdd-study/859663. Accessed 22 Nov. 2024.⁠

Common questions

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

FDA Cleared

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.