Synonyms for rhythm method of birth control

Synonyms for (noun) rhythm method of birth control

Synonyms: rhythm, rhythm method, rhythm method of birth control, calendar method, calendar method of birth control

Definition: 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)

Similar words: natural family planning

Definition: 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