5-7 days : Very accurate with a 5-7 day margin of error in skilled hands.
Answered 3/17/2013
5.2k views
Pretty accurate. : Depends on the sonographer and whether it was vaginal or abdominal u/s but at that point in pregnancy for dates it will be pretty accurate usually.
Answered 8/5/2015
5.2k views
A doctor has provided 1 answer
A doctor has provided 1 answer
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