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A member asked:
My due date based on a 7w1d ultrasound is sep. 2nd but my lmp is aug. 13th. which due date is more accurate.
A doctor has provided 1 answer
Ultrasound: Generally speaking, a first trimester ultrasound is more accurate. If the two dates are within a couple of weeks, generally you keep the LMP dates. However, farther apart than that, you shift to the ultrasound dating because of its increased accuracy..
Answered 6/27/2014
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