Sympto-Thermal Control

What is it?

A woman who is using sympto-thermal control monitors her menstrual cycle in order to determine the timing of ovulation.

How does it work?

A woman measures her basal body temperature to identify changes in her cervical mucus. This helps her determine when she is ovulating and when she is most fertile.

Does it prevent sexually transmitted infections?

Remember that most birth control or contraceptive methods will not protect a person from sexually transmitted infections (STIs).  To reduce the risk of STIs, including HIV, use a condom with another method of contraception. This is referred to as dual protection.

To be effective, birth control must be used correctly and consistently. If you want to prevent pregnancy, choose a method that you and your partner will use every time you have intercourse.

Talk to your health-care provider or visit a sexual health clinic to find out what might work best for you and your partner.

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Last updated: 2019-08-07