I am 40 weeks yesterday I had a doctors appointment my blood pressure was high I was measuring pretty big so he ordered and ultrasound put me on blood pressure medication. I had just had an ultrasound 13 days ago the baby measured 6 lbs 8 oz, well at this ultrasound my baby measured 8 lbs 14 oz! How accurate are these measurements? I know its normal for a baby to grow a lot in the last month but I read its barely an oz a day! Thats more than double average fetal weight gain.