Natural Cycles allows women to track their fertility cycle by entering their basal body temperature into an app.

Elina Berglund Scherwitzl

Raoul Scherwitzl

Natural Cycles

Health & Wellness

Reproductive Health

Finally, a non-hormonal birth control method that's FDA approved! I wish had offered a wearable option as I'm constantly forgetting to pick up the thermometer first thing in the morning. 

Excited at first, but didn't end up working for me. To use the thermometer there are a few exclusion rules or else you can't count the temperature, including: 

If sick 
- colds happen often

Slept >2 hours more/less than usual
- I am a student and during weekday I sleep in and so I can't count it

Woke up close to measuring time but went back to sleep

Woke up in night and didn't fall back asleep quick enough

Among other restrictions, it's just too much stress trying to recall if I can count that night or not. It was also annoying that it can't just automatically sync the temperature without having to go open the app and click the Bluetooth button on the thermometer. Not convenient, I have to constantly think about the birth control and all the hoops. 

Overall takes far too much thought to make it a routine, and feels more like a chore that maybe works, maybe doesn't that day. I understand the appeal, and great for people who can find a way to integrate it into their life but for me it just wasn't it. 

I would likely give it 5 stars if I had the wearable option as It does the exclusion for you and sync automatically. However, then I'd have to go purchase an Apple Watch new version. expensive.




THIS BRAND IS THE BEST!!! Awesome product, great customer service. 

I started using Natural Cycles after transitioning off of the pill, which I had been on for close to 15 years. At first I was skeptical about an algorithm as birth control, but quickly discovered the power of this app. I love being able to closely track my cycle and know when I am ovulating and/or about to get my period. I'm so much more aware of my cycle, symptoms, etc. with this app. I had no idea there was a correlation between body temperature and the phases of my menstrual cycle. This app has helped me learn a lot about my body. Plus, I love that you can use to to prevent OR plan a pregnancy! 

Just the thermometer approach is very unlikely to produce 100% results. Recommended with Oura ring.

I've been using Natural Cycles for a while now, but it wasn't until I paired it with my Oura ring that things really took off. Now, not only do I have a more accurate prediction of my ovulation, but I also have a better understanding of my overall health and wellness. The integration of the two has truly changed my life, and I can't imagine going back to the old way.!!

Plus, the fact that the app is backed by scientific research just gives me even more confidence in its effectiveness. I can't recommend Natural Cycles and the Oura ring enough for anyone looking for a natural, data-driven approach to birth control! THIS ONE IS ICONIC!

LOVE! Have been using for years and it’s truly an excellent hormone / medication free alternative to keep track of your cycle. So great the fda even approved it!

Natural Cycles reviews