CHAPTER 17
Fertility Awareness Methods

What Are Fertility Awareness Methods?

• "Fertility awareness" means that a woman knows how to tell when the fertile time of her menstrual cycle starts and ends. (The fertile time is when she can become pregnant.)
• Sometimes called periodic abstinence or natural family planning.
• A woman can use several ways, alone or in combination, to tell when her fertile time begins and ends.
• Calendar-based methods involve keeping track of days of the menstrual cycle to identify the start and end of the fertile time.
  • Examples: Standard Days Method and calendar rhythm method.
• Symptoms-based methods depend on observing signs of fertility.
  • Cervical secretions: When a woman sees or feels cervical secretions, she may be fertile. She may feel just a little vaginal wetness.
  • Basal body temperature (BBT): A woman's resting body temperature goes up slightly after the release of an egg (ovulation), when she could become pregnant. Her temperature stays higher until the beginning of her next monthly bleeding.
  • Examples: TwoDay Method, BBT method, ovulation method (also known as Billings method or cervical mucus method), and the symptothermal method.
• Work primarily by helping a woman know when she could become pregnant. The couple prevents pregnancy by avoiding unprotected vaginal sex during these fertile days—usually by abstaining or by using condoms or a diaphragm. Some couples use spermicides or withdrawal, but these are among the least effective methods.

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