1 doctor weighed in:

At a 8 week ultrasound how many days can it be off by - && + ??

1 doctor weighed in
Dr. Michael Gabor
Diagnostic Radiology

In brief: The margin

of error is approximately +/- 8%(in days) throughout most of the pregnancy.
So at 8 weeks, about +/- 4.5 days.

In brief: The margin

of error is approximately +/- 8%(in days) throughout most of the pregnancy.
So at 8 weeks, about +/- 4.5 days.
Dr. Michael Gabor
Dr. Michael Gabor
Thank
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