A member asked:

Lmp 4/27. irreg period 30+ days. on 6/23 per transvaginal u/s edd 2/17 at 5w5d. could this u/s be 2 weeks off since they used u/s instead of lmp?

A doctor has provided 1 answer
Dr. Jeff Livingston answered

Specializes in Obstetrics and Gynecology

Ultrasound wins : In early pregnancy an ultrasound is very accurate. A six weeks sonogram has a margin of error of only a couple of days.

Answered 10/7/2014

3.7k views

Thank

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