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Dr. Andrew Rynne

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How to count the day cycle ? Is it from the period has ended ?

just a random question, they say that normally in a 28 day cycle, day 10 to 16 are the fertile days. but when do you start counting the days? when your period has ended.. is that day one? or is the first day of your period counted as the first day?
Wed, 11 May 2011
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General & Family Physician 's  Response
Hi,thanks for query.Day of starting of period is day one for all practical purposes.Even if it starts at night still the previous day is considered as day one.As far as fertile days are concerned ,for example in 28 day cycle the ovulation is presumed to be on day 14,means from 11th to 17th is fertile as it can happen in this period.bye.
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Pediatrician Dr. Suryakanta Baraha's  Response
hello,
its from day 1 of period means when your period starts.but your period should be regular all time if it varies from time to time then calculation is different. so keep it in mind. take care.
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