its a range though, not an exact date bc all babies grow diff. so if by lmp you were 6wks and by us you were 6+3 thats almost as cloee as your going to get. baby will measure sl7ghtly diff each time bc of the rate its growing at
My first u/s Was at 6 w and the baby was already measuring 2-3 days ahead ..
ultrasounds only give you a range. they can't pin point an exact day. in the first trimester its about a week either way and the second trimester its close to two weeks either way. you go by your first ultrasound because the earlier the ultrasound the more accurate
Babies grow at different rates. It just means baby is a bit bigger than the average 17 week baby. Doesn't mean you will deliver sooner or that your due date changes.
My baby has measured a week earlier than what I am the past two appointments. My doc hasn't changed my date and she doesnt seem worried.
No it be the measurements of the fluid or that your baby is alittle big. But as long as your baby us healthy dont worry about the small stuff.
Just means in 3 days you'll be 18 weeks. So you can keep up with your weeks.