If you're measuring ahead at your appointment, do you go by that or how many weeks you thought you…

I always measured about 2 weeks bigger. go by your last period of possible. when they do the ultrasound they can tell you exactly how far you are

your due date stays the same

Yeah in the beginning they said I wasn't as far as long as I thought I was by my last period. But yesterday I was measuring 21 weeks which makes sense to when my last period was. Thanks! @raising_carson16

not unless your doctor gives you a new due date

I was measuring a week ahead and they changed it only cause it made sense with my short cycles. Otherwise they don't normally change it