Doubt pregnancy but.: Menstrual cycle varies from 26 days to 31 day cycle. The shortest cycle [26days] minus18days=8th day. The longest cycle [31days] minus 10days=21st day Thus, 8th to 21st day of each cycle counting from first day of menstrual period is considered as fertile period. That is UNSAFE PERIOD.Period other than this fertile period in a menstrual cycle is considered as SAFE PERIOD. But variations exist.
Answered 11/25/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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