Safe period calculator: http://period.nyws.com/Data.asp Q.What is Safe Period? Ans. If a woman is having a 28 day cycle, she would ovulate on the day 14, So she should not do sex with her partner from the day 9 to day 18. Remaining days are considered as safe period. But this method is not 100% safe. It is highly recommended to take precaution. For irregular periods, it is difficult to expect the time for ovulation. All the best.
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