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A member asked:
I have two due dates based on my lmp and and ultrasound. which one is more accurate?
A doctor has provided 1 answer
Ultrasound: Dates can be off or wrong. Ultrasound more accurate.
Answered 11/18/2013
4.7k views
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I had my period on April 9th. My periods are fairly irregular by a week or so. My ultrasounds measure two weeks behind my LMP due date. I've had one done at 5WKS (too small to tell), 6WKS5DYS, & 19WKS. They all gave me the same due date by except 2 days.
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