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A member asked:
My obgyn isn't going off my lmp march 24th. why does my sonogram date back to april 15th.
A doctor has provided 1 answer
Sono more accurate: variations in ovulation day, cause us to use sonogram measurement of the baby to determine a more accurate due date. when the date estimates are close, no change in due date, when difference is larger, use the sonogram estimated due date.
Answered 9/7/2017
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When sonograms are done in 2nd and 3rd trimesters, are those based on LMP or by growth? I'm trying to figure conception date
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3 doctors weighed in across 2 answers
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