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A member asked:
Lmp 4/27;edd 2/17. by lmp the dd would be 2/1/15.after 4 u/s the edd is between 2/8-2/17. is this b/c of late ovulation since its still not 2/1?
A doctor has provided 1 answer
Could be few reasons: It's definitely not an exact science when we're predicting EDD.It could be an ovulation that did not happen until after the standard day 14 often used for estimation.With ultrasound it's more to do with the size of the fetus-it may be measuring smaller than one would expect for an EDD of 2/1 according to how you measured at 23 weeks.They are only a week off which is not unusual.
Answered 10/8/2014
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Related Questions
A member asked:
I had sex on feb 18 and feb 26. My LMP was 2/9, ovulation 2/23! us 15 weeks 2 days on 5/23 with edd of 11/11. When did i conceive?
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What if you know your LMP (which is regular 28 day cycle) but doctors change EDD going by first ultrasound. Why, did I ovulate later or what??
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If due date was june 3 based on LMP of aug 27, then it changed to may 31 after u/s, could this be bcuz i ovulated sooner? Conception date different?
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