Medical Definition of safe period
: a portion of the menstrual cycle of the human female during which conception is least likely to occur and which usually includes several days immediately before and after the menstrual period and the period itself
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“Safe period.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/safe%20period. Accessed 17 Apr. 2021.
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