due dates off??

[girlinseptember]

When I first went to the doctor I thought my due date would be around the 6th of September, however they put me at the 21st. My first ultrasound was early and they said the 19th, then at my second ultrasound they changed the due date to the 15th. I went for an ultrasound at 27 weeks because of a larger fundal height and they said development was about 10 days ahead, which would make the due date the 5th of September. My last LMP was on the the 30th of Nov 2012, do you think they got dates wrong or do I just have a bigger baby? I have been on bedrest since my 27 week ultrasound due to risk of preterm labor, so I am kinda hoping baby is due earlier as that gives her a better chance of development.

[lexa_k]

The first ultrasound is the most accurate for dating your due date.

[girlinseptember]

It was on the 30th of November to 4th of December. I'm not necessarily worried, but have thought throughout entire pregnancy so far that I am further along.

[Tay9662]

well when was your last period ? mine was Nov27-Dec3, and my due date is September 3..  I was told they don't go by ultrasounds for due dates after 20 weeks because the ultrasounds can be off when I had mine at 30 weeks, she was measuring "2 weeks farther than previous" 4.1pounds and 18 inches, but my doctor said that the baby is probably just big or the ultrasound is off a bit.. so your baby is probably just big or ultrasound is off a bit, if your worried about it you could ask your ob if they could set you up a appointment with a high risk doctor or a 4d/5d specialist so you get more accurate information.. but babys can always have that 2 week period so you could technically be 29 weeks right now