Ultrasounds-pg112601556718

5 Replies
channel - September 6

on an ultrasound do they date your pregnancy going by your last menstral period or date of conception

 

christy - September 6

I think they measure the sack and size of baby and give you an estimate, but unless it's more than 2 weeks difference they usually stick w/ your last period.

 

Lena - September 6

I've had 2 u/s and both listed the wks + days from my last menstrual period.

 

Valerie - September 6

At my u/s they said it was showing I was 2 days off from the date it should have been by my lmp, but she said if it's only 2 days they don't change the due date. So they are still going by my lmp date. They just measure the size of the baby and tell you how far along it says you are from lmp.

 

natasha - September 6

yes thats the only way they will know. they measure the babys head and body to determine how far you are

 

Liz - September 6

My doc said if the ultrasound was more than a week off my last menstrual period date, they would use the ultrasound.

 

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