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measuring bigger C&J 27 weeks Due October 24 (girl); 1 child; REDWOOD CITY, CA, United States 332 posts
status 6th Jun

Im suppost to be 20 weeks today and due oct. 24th but according to ultrasound and measuring im 2 weeks ahead, is this normal? my dr doesnt want to change my due date. 

N+J+? Due August 23; United Kingdom 416 posts
6th Jun

Yeah the further along you get the more variable growth is between babies so it's more accurate to stick with the dating u/s.

I♡MyBabyGirlBrynn Due June 23 (girl); 1 child; British Columbia, BC, Canada 13001 posts
status 6th Jun

Yes it is normal for babies to measure ahead later in the pregnancy, but usually if it is a difference of two weeks, they change it. 

LittleTiger 2 kids; Florida 10543 posts
status 6th Jun

Ultrasounds can be off. They use them around 12 weeks to confirm dating and sometime after that its no longer as accurate.


Pole lizard Due July 1 (girl); 2 kids; My house, VA, United States 1611 posts
6th Jun

It's normal. I have been measuring 4 weeks ahead consistently and the past 2 times have leveled off to measuring 2 weeks ahead. Measurements can be off. Nothing to worry about. 

Squeaky McGee 2 kids; 3 angel babies; Indiana 65151 posts
6th Jun

It's normal for the measurements to be off by a week or two in either direction.

**Blessed_Insanity** 7 kids; Wyoming 18692 posts
6th Jun

Yeah ultra sounds after so many weeks are not very accurate. I know with my last pregnancy, my son ALWAYS measured 2 weeks behind and small, but that was def not the case.