Is Natural Cycles Right for me?

✅ 100% Hormone-free

💪 No unwanted side effects

🏅 FDA Cleared & CE Marked

💜 Take control of your fertility

Comparing birth control effectiveness

It's important to consider the effectiveness of your birth control. When it comes to effectiveness there’s typical use and perfect use. Perfect use is when a method is used perfectly (i.e. no user error), whereas typical use includes user error and method failure.

Natural Cycles is just as effective from your very first day, as when you've been using it for years. However, until the algorithm gets to know your cycle, you'll get mostly red days in the beginning.

Let's compare typical use effectiveness



Two contraceptive pill strips


Contraceptive Pill

Illustration of NuvaRing



hormonal iud illustration


Hormonal IUD


Phone with the natural cycles app and thermometer


Natural Cycles

illustration of a male condom


Male Condom

copper iud illustration


Copper IUD


Percentage of typical users who did not get pregnant with the method over 1 year of use. Source.

Take our quiz to find out if Natural Cycles is for you
Are you able to take your temperature most mornings when you wake up?
Choose the primary birth control method you are currently using:
Do you have any of the following?
Are you and your partner willing to abstain from sex or use condoms on fertile days?

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Based on your answers it looks like Natural Cycles is a perfect fit for you!

You answered that you either have an irregular cycle or a condition that may affect your cycle or temperature. Natural Cycles won’t be any less effective for you, however, you might get more red days if the algorithm needs more time to get to know you.

Going hormone-free

Why are so many women choosing hormone-free birth control?

There’s no-one-size-fits-all for birth control and we all have different experiences. For some, hormonal contraception is a great option. Others who can't take hormonal birth control or get unwanted side effects may choose a hormone-free birth option instead.

While Natural Cycles is not the only non-hormonal birth control method, we are the only birth control app that’s cleared by the FDA in the United States and CE marked in Europe. We have over 1.5 million registered users.

Your routine

Do I have to change my routine to use Natural Cycles?

To use Natural Cycles you need to be able to measure your temperatures most mornings when you wake up - we recommend you measure at least 5 times a week.

If you forget to measure, the app doesn’t get any less effective, you might just get more red (fertile) days. For those with certain conditions that affect temperature, or those with irregular cycles, Natural Cycles may also give more red days if it cannot easily find ovulation.

Switching birth control

What to consider before changing birth control

If you’re using condoms or a fertility awareness-based method, the good news is that you can get started straight away! However, hormonal birth control often works by stopping ovulation, so you’ll need to stop using hormonal birth control before switching over.

Still wondering if Natural Cycles is right for you? The app has a handy demo mode that lets you try the features out before you sign up for a subscription.

Different birth control methods against a wavy light-coloured background

Discover Natural Cycles today