A member asked:

I am 31 weeks. i didn't know my last period so my doctor said my last period was june 2 but it wasnt.how do he know that?

A doctor has provided 1 answer
Dr. Robert Killian answered

Specializes in General Practice

Ultrasounds: I would believe that this was diagnosed based upon the size of the baby when the ultrasound was done. Or, if no ultrasound, then the curve of the growth of your baby or the growth of the uterus seen on exam over the time of your pregnancy.

Answered 12/30/2014

4.6k views

Thank

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