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A member asked:
Based on an estimated lmp from an eight week ultrasound to be 10/15/12, what is the very latest possible date conception could have occurred?
3 doctors weighed in across 2 answers
Need more info: What was the date of your ultrasound. And on that day, what did they estimate the gestational age of the baby to be.
Answered 7/10/2013
5.1k views
What I think you are: Asking is, what is the error in the us dating? Given the information in the question, it appears a prenatal us was performed on approximately 12/10/2012, which was 8 weeks after the (estimated) first day of the last menses. Conception occurred approximately 2 weeks later, or 10/29/2012, plus or minus the error in the us dating, which is about 4 days. Latest estimated date is 11/2/2012.
Answered 6/15/2013
5.1k views
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