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A member asked:
Lmp 11/01/13 and 30 day cycles. u/s on 1/20/14 measured me at 11w4days. u/s 4/22/14 measured me at 24 w5d. due date aug 7, when did i conceive?
A doctor has provided 1 answer
Conception date: The ultrasounds are of little or no help in determining your conception date. Neither was done early enough to help here. On a 30 day cycle you would have ovulated on days #15-17. That would place your ovulation on approx 11/16-11/18. These dates are when the egg would have been fertilized, or the conception date. However, sperm can last a while, so sex on any days 11/7 - 11/18 could have supplied
Answered 6/3/2014
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