How does NC° Birth Control Work?

Did you know, you can’t get pregnant every day of your cycle?

NC° Birth Control has 3 easy steps

When you wake up in the morning, use the Natural Cycles thermometer to take your temperature.


Measure in the morning

Did you know your temperature rises slightly after ovulation? Charting body temperature is not a new birth control method. However, Natural Cycles pairs this traditional method with an algorithm that learns the pattern of your unique cycle and can predict your fertile window. Use a basal thermometer to take your temperature as soon as you wake up in the morning.

Add data

Add your unique data to the app

Input your daily temperature readings into the app - don’t worry, it’s OK if you skip some days! You’ll also need to add your period data - this lets us know when a new cycle starts, and helps us find your ovulation. You can also add extra info like cycle symptoms, changes to your mood and sex data, so you can learn even more about the pattern of your unique cycle.

Learn about your body

Learn your status

Once you’ve added your temperature, the app will give you a fertility status for the day. Depending on where you are in your cycle you’ll either get given a green day (not fertile) or a red day (fertile). The app will also give you handy reminders like PMS alerts and when to carry out a breast exam, so you can learn more about your body along the way.

Discover Natural Cycles° today