Kuinka äännetään sana "rhythm method of birth control" (Englanti)
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Lisää oma ääntämesi "rhythm method of birth control"
Merkit ja määritelmät "rhythm method of birth control"
- Noun
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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