Natural Cycles is the world’s first FDA-cleared, hormone-free birth control app that helps you track your fertility naturally. Using advanced algorithms and your daily body temperature, it accurately determines your fertile and non-fertile days—giving you the freedom to plan or prevent pregnancy with confidence.
A smarter way to take control of your reproductive health – Learn more
Measure Your Temperature – Use the Natural Cycles thermometer to track your basal body temperature every morning.
Let the App Analyze Your Data – The app’s algorithm detects patterns in your cycle and predicts your fertile and non-fertile days.
Make Informed Decisions – Whether you’re preventing pregnancy or planning for the future, you’ll always know your fertility status.
Take charge of your reproductive health – Start your journey
No Hormones, No Side Effects – Unlike traditional birth control methods, Natural Cycles is 100% hormone-free, helping you avoid unwanted side effects.
Clinically Proven & FDA-Cleared – Backed by scientific research, Natural Cycles is a trusted choice for women seeking a natural alternative to birth control.
Personalized Insights – Understand your unique cycle, hormone fluctuations, and ovulation patterns for better reproductive health.
Join thousands of women using science-backed birth control – Get started today
Non-Invasive & Easy to Use – No pills, no implants—just daily temperature tracking with an intuitive app.
Works with or Without Protection – Use it alone or combine it with barrier methods on fertile days for added protection.
Pregnancy Planning Made Simple – When you’re ready, switch modes to use Natural Cycles for conception tracking.
Seamless Integration – Syncs with Apple Watch or Oura Ring for effortless temperature tracking.
Experience natural, science-backed birth control today – Start your free trial