A member asked:

According to my 8 and 12 week ultrasounds my conception date is january 5? how accurate is this and how many days can it be off ?

A doctor has provided 1 answer

Dr. Justin Buchanan answered

Specializes in Radiology

Pretty accurate: First trimester ultrasound can accurately date pregnancy to within 4 or 5 days, so your conception date is likely between jan 1 to jan 10.

Dr Patel agreed

Answered 9/29/2016

4.2k views

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A member asked:

According to my 8 and 12 week ultrasounds my conception date is january 5? how accurate is this and how many days can it be off ?

A doctor has provided 1 answer

Dr. Justin Buchanan answered

Dr Patel agreed

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