A member asked:

Which is more common, over-age or under-age a 7 week 2 day old fetus with transvaginal u/s?

A doctor has provided 1 answer

Either way: 7w 2d vaginal ultrasounds are going to typically be very accurate. There's no data to show that they will be inaccurate towards a lessor or greater degree in terms of days. Have confidence that your dating is very accurate.

Answered 8/31/2013

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