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Non-Hormonal Birth Control

How does Clue Birth Control work?

Everything you need to know about the new non-hormonal birth control from Clue

Top things to know:

  • Clue Birth Control is a digital contraceptive that naturally prevents pregnancy without hormones

  • Download Clue Plus to access Clue Birth Control mode

  • Clue Birth Control works by predicting which days in your cycle are high and low risk for pregnancy 

  • Clue Birth Control is free from side effects and easy to use

Everything you need to know about Clue Birth Control 

Clue Birth Control is our FDA-cleared digital contraceptive, built right into the Clue app. It’s an innovative way to prevent pregnancy, created by the app you trust to track your period and menstrual cycle experience. 

It is easy to use, hormone free, and has no side effects. Unlike other birth control methods, Clue Birth Control doesn’t come in the shape of a pill, IUD or injection. Instead, it’s in your phone and with you wherever you go. You simply need a mobile device, access to the Internet, and the ability to track your period start date each cycle. 

Clue Birth Control uses your personal cycle patterns to identify the days of each cycle with a high and low risk of pregnancy. You can check the app each day to instantly know if your risk of pregnancy is high or low. On high risk days, always use a barrier method such as a condom when you have sex that may result in pregnancy.

How Clue Birth Control works

Clue Birth Control is an algorithm that was developed using millions of data points from landmark studies to predict which days are high or low risk for pregnancy. When you track the first day of your period, Clue Birth Control uses your period start date to calculate your pregnancy risk for each day of your cycle.

Clue Birth Control is not a way to track your use of other birth control methods like the pill, IUD, or injection. Do not use Clue Birth Control if you’re currently using hormonal contraception or have a copper IUD. 

Clue Birth Control is different from other methods of birth control. It doesn’t require maintaining a calendar or checking your temperature every day. It’s simple and easy to use. Just enter your period start date each cycle and check the app to know if you are high or low risk for pregnancy before you have sex that may result in pregnancy. On high risk days, always use a barrier methods such as a condom when you have sex that may result in pregnancy.

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Prevent pregnancy by tracking your cycle with Clue Birth Control

  • Download the Clue app on the App Store
  • Download the Clue app on the Play Store

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The Clue Birth Control algorithm was developed by researchers at Georgetown University in Washington D.C. using menstrual cycle data collected from landmark studies. The algorithm was evaluated in a research study called a clinical trial, during which 718 people used it to prevent pregnancy. The study followed participants for up to 13 cycles each, resulting in a total of 6616 cycles. About 75% of people using the app had used hormonal birth control in the past. Through this trial, it was demonstrated that the algorithm was effective at preventing pregnancy (1). 

How well does Clue Birth Control work?

Clue Birth Control is 97% effective with perfect use and 92% effective with typical use. Typical use is when the birth control method is used incorrectly at least some of the time (1). 

“92% effective with typical use” means that 8 out of 100 women are expected to get pregnant during one year of using Clue Birth Control (1).  

The number of women who are expected to get pregnant from using birth control methods typically over one year are (2):

Perfect use of Clue Birth Control means tracking the first day of your period accurately each month and always using a barrier method such as a condom when having sex that may result in pregnancy on a high risk day. 

“97% effective with perfect use” means that 3 women out of 100 are expected to get pregnant during one year of using Clue Birth Control correctly every time they have sex on a high risk day (1).

How is Clue Birth Control personalized for you?

When you start using Clue Birth Control, it will take a few cycles for the algorithm to get to know your personal cycle pattern. As you continue to track your period start dates, your predictions become more personalized which can result in fewer high risk days. 

Once you enter your last period start date into Clue Birth Control, you can safely start using it right away for contraception. You will start with 16 high risk days in your first cycle. On high risk days, always use a barrier method such as a condom when you have sex that may result in pregnancy. Depending on your unique cycle patterns, after 6 cycles using Clue Birth Control, your number of high risk days will probably average around 11 to 13 days a cycle.

Can everyone use Clue Birth Control?

Not everyone can use Clue Birth Control—you must meet the Eligibility Checklist for Clue Birth Control to be able to make accurate predictions for you. If you’re not eligible for Clue Birth Control, this doesn’t mean there’s a problem with your cycles. Clue Birth Control uses technology that requires certain parameters to accurately make predictions. Many people have cycle characteristics that do not meet this criteria. This doesn’t necessarily mean that there is anything atypical about their cycles. You can still use the Clue Period Tracking mode to track your cycle and symptoms.

Why can't I use the Clue Period Tracking mode as birth control?

The Clue Period Tracking mode was designed to estimate your period start dates, not to prevent pregnancy. It uses a different algorithm that estimates the timing of ovulation based on your cycle length, tracking history, and global averages. Your estimated ovulation day that shows up in the Clue Period Tracking mode of the Clue app is a scientific estimate that has not been studied in a clinical trial. Your likelihood of becoming pregnant is much higher if you try to use the Clue Period Tracking mode to prevent pregnancy. 

Clue Birth Control was designed to predict high and low risk days for pregnancy and has been studied to make sure it is effective for this purpose. Make sure you have switched to the Clue Birth Control mode before using Clue to prevent pregnancy. 

Can Clue Birth Control mode track my cycle experiences like the Clue Period Tracking mode?

Yes. In addition to your period start date, you can track other cycle experiences on period and non-period days, just like in Clue Period Tracking mode. Tracking your cycle experiences is helpful for learning more about your cycle and how it impacts your body and mind. Tracking your cycle helps you understand your body, but Clue Birth Control doesn’t use this data to predict your high or low risk days. Only your period start dates are used to determine your pregnancy risk predictions. 

Have more questions? Contact our Support Team from the More Menu, or by going to: https://support.helloclue.com/hc/en-us.

Clue Birth Control will be launched in the USA in 2022. We are excited to bring Clue Birth Control to other countries soon. This will take a little more time, but we’re on it.

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