Im 36 weeks now and all along baby was measuring right on schedule until my last ultrasound (a month or two ago) where they said she was 2 weeks ahead.  Then docs measurements of my belly have been a day or two behind here n there.  This all seems fine n normal to me - a little ahead, a little behind, should even out.  Doc wants me to have one more ultrasound to check baby's weight.  I'd rather not because 1) I've seen the weight estimates from US can be way off 2) if she's big they may pressure me to induce which I do not want to do 3) even if she's big I still want to try natural so what is the point of knowing as it may make me more nervous.  Anyone gone through this and refused the US?  Or gotten it and it was really helpful?  Thoughts?