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Related to safe period: fertile period
(Medicine) informal the period during the menstrual cycle when conception is considered least likely to occur. See also rhythm method
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|Noun||1.||safe period - that time during a woman's menstrual cycle during which conception is least likely to occur (usually immediately before of after menstruation)|
menstrual cycle - a recurring cycle (beginning at menarche and ending at menopause) in which the endometrial lining of the uterus prepares for pregnancy; if pregnancy does not occur the lining is shed at menstruation; "the average menstrual cycle is 28 days"