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A member asked:
Can a 12 week fetus be confused with an 11 or 13 week old fetus? (crl 62mm)
A doctor has provided 1 answer
Yes: The accuracy of a sonogram at this early stage is usually plus or minus a week so depending on the quality of the quality of the sonogram dates can very about 1 week or another.
Answered 3/26/2013
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