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A member asked:
2 u/s (11w & 12w) both gave me a edd of august 18th ..i had sex 24 & 25 nov.. i also had sex dec 6th?. periods were very irregular. likley concption?
A doctor has provided 1 answer
End of Nov: Based on your edd, probable window of conception is nov 21st - nov 29th, however this is based on a regular menstrual cycle of 28 days. It is very difficult to determine conception day in a woman with irregular periods unless she has been tracking her ovulation.
Answered 9/29/2016
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