Natural Cycles is intended for women 18 years and older, and can be used to prevent a pregnancy (contraception) or plan a pregnancy (conception). With over 3 million registered users, there are many reasons to use Natural Cycles. Some users (or Cyclers, as we refer to them) choose Natural Cycles because they suffer from negative side effects from hormonal birth control, others want to have a better understanding of their body, and some come to Natural Cycles because while they are not ready to have a child now, they want an option that can help them plan a pregnancy when they are ready.

NC° Birth Control Here

Prevent pregnancy with Natural Cycles

100% Hormone-free

Zero side effects

FDA Cleared

Why does ovulation matter?

You can’t get pregnant every day of your cycle. The fertile window is six days in the cycle. It begins five days before ovulation, as sperm can survive up to five days in the body under the right conditions, and ends on ovulation day. When the egg is released on ovulation day, it can only survive for a maximum of 24 hours. Only during these six days is it possible to get pregnant through unprotected sexual intercourse. 

Everyone has a unique menstrual cycle pattern. For example, the cycle length and the day ovulation occurs vary from person to person and cycle to cycle. Since your ovulation day can change from cycle to cycle, determining when you may ovulate and confirming whether you have ovulated is crucial for knowing your daily fertility status. 

Body temperature changes during the menstrual cycle and can be used to detect ovulation and identify your fertile window. Natural Cycles is an app powered by a regulated and certified algorithm based on body temperature that learns the pattern of your unique cycle to work out each daily fertility status.

Is Natural Cycles effective birth control?

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. Read more on the science behind our effectiveness.

Forgetting to measure doesn’t impact how effective NC° 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 because – Natural Cycles is effective from the first day of use!

Can I use Natural Cycles to get pregnant?

Absolutely. Natural Cycles goes beyond birth control. Learning about your cycle also gives you the power of knowing when it’s the best time to conceive. NC° Plan Pregnancy tells you the days when you are most fertile, and it can also let you know when it’s the optimal time to take ovulation or pregnancy tests. Once you log a positive test in the app, you can start using NC° Follow Pregnancy – here, you’ll get regular updates on the progress of your pregnancy.

To use NC° Plan Pregnancy, you need to measure your body temperature, input your temperature and period data, and then the Natural Cycles algorithm will provide your daily fertility status. In NC° Plan Pregnancy, the fertile window is presented in a scale of red colors, where the most fertile day has the darkest shade of red, and the lightest red color indicates that fertility is less likely. Non-fertile days have a light green color. 

Natural Cycles gives you the information you need to time intercourse and maximize your chances of conceiving. Our research shows that, on average, it takes three cycles or less to become pregnant using NC° Plan Pregnancy.

What certifications does Natural Cycles have? 

We are FDA Cleared in the US and CE Marked in Europe as a medical device for contraceptive use. We are also listed in the ARTG in Australia and on the SMDR in Singapore. Our certifications have been granted based on mandatory clinical data that demonstrates that the effectiveness rate of Natural Cycles is 93% with typical use and 98% with perfect use (when using protection on each Red Day). Natural Cycles is the first app to be assessed and recognized as a method of birth control in Europe and the US. 

Read more about our regulatory clearances.

Natural Cycles: A Holistic Approach to Contraception and Fertility Tracking

Welcome to Natural Cycles, your trusted companion in natural family planning and fertility tracking. As a leading fertility app and contraception method, Natural Cycles offers a comprehensive and science-based approach to empower individuals in managing their reproductive health.

The Science Behind Natural Cycles:

Natural Cycles is backed by extensive scientific research and is the first and only FDA-cleared birth control app. It combines advanced algorithmic technology with your body’s unique menstrual cycle patterns to provide accurate predictions of your fertility status. By tracking your basal body temperature and inputting additional cycle-related data, the app tailors its predictions to your individual physiology, making it a personalized and reliable tool for fertility awareness.

Key Features:

1. Non-Invasive Contraception: Say goodbye to hormonal contraceptives and embrace a non-invasive, hormone-free method. Natural Cycles offers a natural alternative for those seeking effective contraception without the side effects commonly associated with traditional birth control methods.
2. Fertility Tracking Made Easy: The user-friendly interface makes tracking your menstrual cycle, basal body temperature, and other relevant data a breeze. Receive daily insights into your fertility status, empowering you to plan or prevent pregnancy with confidence.
3. Personalized Insights: Natural Cycles adapts to your unique cycle, providing personalized predictions that become more accurate over time. This adaptability ensures that the app aligns with your individual reproductive health journey.
4. Comprehensive Education: Beyond tracking, Natural Cycles is committed to educating users about their bodies and reproductive health. Access a wealth of educational content that covers topics such as fertility, menstruation, and overall well-being.
5. Community Support: Join a supportive community of individuals navigating their reproductive health journeys. Share experiences

Why Choose Natural Cycles?

• Empowerment: Natural Cycles puts you in control of your fertility, allowing you to make informed decisions about your reproductive health.
• Scientific Credibility: Our app is developed based on extensive scientific research and is continually updated to incorporate the latest advancements in reproductive health.
• Community Support: Join a vibrant community of individuals sharing similar fertility goals. Connect, share experiences, and support each other on your unique journeys.
• Privacy and Security: We prioritize the security and privacy of your data. Natural Cycles complies with the highest standards of data protection.

Embark on your fertility journey with Natural Cycles – where science meets nature for a more informed and empowered approach to reproductive health. Download the app today and take the first step towards a future you envision.