natural family planning

1. Any of several methods of family planning that do not involve sterilization or contraceptive devices or drugs;
   Coitus is avoided during the fertile time of a woman's menstrual cycle (synset 100853319)
   is a type of: birth control, birth prevention, family planning - limiting the number of children born
   subtypes:

   • basal body temperature method, basal body temperature method of family planning - natural family planning in which the fertile period of the woman's menstrual cycle is inferred by noting the rise in basal body temperature that typically occurs with ovulation
   • ovulation method, ovulation method of family planning - natural family planning in which the fertile period is inferred from changes in the character and quantity of cervical mucus; ovulation is marked by an increase in mucus that becomes sticky and then clearer and slippery
   • calendar method, calendar method of birth control, rhythm, rhythm method, rhythm method of birth control - natural family planning in which ovulation is assumed to occur 14 days before the onset of a period (the fertile period would be assumed to extend from day 10 through day 18 of her cycle)

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