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Maryville, TN
A 24-year-old female asked:

Do all fetuses grow the same in the first trimester? poss for a fetus to grow small & date multiple weeks behind? ex actually be 12w, but date 8w?

1 doctor answer3 doctors weighed in
Dr. Jane Van Dis
Obstetrics and Gynecology 20 years experience
No: Most first trimester fetus' grow at the same rate. There would have to be a major structural abnormality (likely one that wasn't compatible with life) that would make it such that there was a 4 week lag. Trust that your ultrasound is right, your pregnancy is right and that there's nothing wrong with the dating.
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Last updated Aug 15, 2013


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