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A member asked:
I'm due aug 30th according to ultrasound at 12 weeks, 1st ultrasound at 6 weeks said due date aug 29th, my lmp nov 18 need my conception date range :)?
4 doctors weighed in across 2 answers
US dates: The ultrasound dates are most accurate. If the us at "6 weeks" estimated that the baby was actually 6 weeks. You likely conceived about 4 weeks before that date.
Answered 9/14/2014
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Early US: Early ultrasounds are very accurate. Your 12 week ultrasound and 6 week ultrasound are within a week of each other. Hence your due date is based on your early ultrasound.
Answered 10/5/2020
5.2k views
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Related Questions
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Don't need to pinpoint conception day, but two first trim ultrasound give same due date we have no lmp to go off, how accurate is age of our baby?
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I got my first ultrasound at 16 weeks. My LMP came to december 5th and conception date was december 19th. Is it possible i could of conceived jan 10?
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My ultrasounds date back to my (estimated) date of conception rather than the first day of my LMP. Is this normal?
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