Natural Cycles: FDA-Cleared Birth Control App
Track your cycle with smart algorithms and take control of your fertility.
Get Started with Natural Cycles
Natural Cycles is the first FDA-cleared birth control app that uses your daily temperature readings to predict ovulation and determine your fertility status. Backed by clinical studies, it offers a hormone-free alternative for pregnancy prevention or planning, with a 93% typical-use effectiveness rate.
Why Natural Cycles SE?
What makes this offer worth a look
FDA-Cleared & Clinically Proven
The only birth control app with FDA clearance, proven effective in clinical trials with 93% typical-use efficacy.
Hormone-Free & Natural
No pills, patches, or implants. Uses your basal body temperature to track your cycle naturally.
Personalized Fertility Insights
Get daily red or green days indicating your fertility status, tailored to your unique cycle patterns.
Easy to Use
Simply take your temperature each morning with the included thermometer and log it in the app.
Also Helps with Conception
If you're planning a pregnancy, Natural Cycles identifies your most fertile days to optimize timing.
How it works
- 1
Measure your basal body temperature each morning using the provided thermometer.
- 2
Log the reading in the Natural Cycles app, which uses an algorithm to analyze your cycle.
- 3
Receive a daily notification: green means low fertility risk, red means you may need protection.
- 4
Over time, the algorithm learns your cycle and provides increasingly accurate predictions.
Frequently asked questions
Is Natural Cycles effective as birth control?
Yes, with typical use it is 93% effective, and with perfect use it is 98% effective, based on clinical studies.
Do I need a prescription?
No, Natural Cycles is available over the counter as an FDA-cleared medical device.
How long does it take to learn my cycle?
The algorithm becomes personalized after about 30 days of data, but it may take 2-3 months for full accuracy.
Can I use it if I have irregular cycles?
Yes, Natural Cycles is designed to work with irregular cycles, though accuracy may vary.
What if I forget to take my temperature?
You can log a missed temperature, and the app will still provide guidance based on previous data.
Ready to try Natural Cycles SE?
Track your cycle with smart algorithms and take control of your fertility.
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