Rhythm Method | Birth Control - Britannica

Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos rhythm method References Contents rhythm method birth control Ask the Chatbot a Question Ask the Chatbot a Question Also known as: natural family planning, periodic abstinence

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• based on menstrual cycle

use in

• contraception
  • In contraception: Fertility awareness techniques

    Three procedures can be followed to predict ovulation so that, during the approximately six days of a woman’s most fertile monthly phase, sexual intercourse can be avoided. Their effectiveness is typically about 80 percent but may reach as high as 99 percent,…

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• family planning
  • In birth control: Periodic abstinence

    …abstinence, also known as the rhythm method or natural family planning, are practiced. The time of ovulation can be estimated from a calendar record of previous menstruation, but this method has low effectiveness. More reliable methods include keeping a daily record of body temperature or recording physical changes in the…

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