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A member asked:
Do ultrasounds add two preconception weeks when measuring baby? if baby measures 12 w is this supposed to date to lmp or conception?
A doctor has provided 1 answer
Yes. LMP.: The gestational age (number of weeks pregnant) stated in the result of the ultrasound already added the 2 preconception weeks. If the ultrasound dating says 12 weeks gestation, that means 12 weeks since the estimated start of the last menstrual period (lmp).
Answered 3/2/2014
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Related Questions
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1st ultrasound says crl 8mm 6w5d. 2nd says crl 28mm, 9w4d. 3rd , crl 60.9mm 12w4d.Are these supposed to date back to lmp? When was conception?
A doctor has provided 1 answer
A member asked:
Do ultrasounds add two weeks & should they theoretically date back to your lmp?On 12/6/13 baby measured 12w4d, crl was 60.9mm.If go back 12w4d should that date to(or close to) my lmp?When was conceptn?
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