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A member asked:
How accurate are ultrasounds? with conception date lmp 4/25/14 30 daycycle lasted 4 days duedate 1/30/15 according to 8wk 4day ultrasound on 6/24/14
A doctor has provided 1 answer
The margin: of error for ultrasound pregnancy dating is about 8%. At 8 weeks, this corresponds to +/- 5 days.
Answered 9/2/2016
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