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A member asked:
How accurate is an ultrasound done at 9 weeks?
2 doctors weighed in across 2 answers
Very: For dating a pregnancy, 9 week ultrasound is quite accurate, usually within a few days.
Answered 5/4/2015
5.2k views
Thank
+/-5-6 days.: Extremely accurate within 5-6 days on either side of the due date it determines.
Answered 12/9/2013
5.2k views
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