Hi,
My LMP was 20-10-2016 and my EDD is 27-07-2017.
And I'm completing 13 weeks today as per my LMP.
But I did a NT scan today as per Dr's advice and its showing 12 weeks 2 days & EDD as 31-07-2017.
I'm a bit confused.
please clarify it

hii dear ultrasound reports are always +or- one week that means they r not absolutely correct no worries it happens to all .but mostly dr take account of the ultrasound reports as they use bebys growth and measurement for calculating edd so relax its normal..

The LMP date is a defined number. The radiologist report shows the actual growth which can be plus or minus fifteen days. It's normal for this report to fluctuate all thru your pregnancy. For all medical purposes the LMP date is taken into consideration however since the radiologist reports as per growth delivery is expected closer to the sonography date.

thank u Parveen & Sonali