The only FDA Cleared birth control app
Introducing NC° Birth Control
No hormones or side effects
FDA Cleared as contraception
Adapts to your cycle
How does NC Birth Control compare to other methods?
Percentage of typical users who did not get pregnant with the method over 1 year of use. Read more.
Find out if Natural Cycles works for you
How does it work?
You can only get pregnant on 6 days of your cycle. Natural Cycles finds your fertile window by analyzing body temperature.
The algorithm learns the pattern of your cycle, giving a daily fertility status, so you can prevent pregnancy hormone-free!
Your daily routine with Natural Cycles
Measure your temperature
Open the Natural Cycles app
Confirm daily fertility status
Join 3 million+ users worldwide
I feel empowered knowing about my body’s natural processes.
Joined NC° in 2022
I’ve experienced significantly less pelvic pain... and our intimacy couldn’t be better.
Joined NC° in 2023
Has got to be THE best natural birth control on the market. 10/10 recommend!
Joined NC° in 2021
NC° helped me understand my body, cycle, and the best time of the month to get pregnant.
Joined NC° in 2019
Nothing short of amazing! We just welcomed our baby girl, all thanks to NC°.
Joined NC° in 2022
Natural Cycles can help youplan pregnancy
Predictions can change
Natural Cycles can help youtrack symptoms
Natural Cycles can help youunlock insights
13 September 2023
Hello, green days!
15 September 2023
Tips on PMS
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.