My original due date was May 1st,2016. It was then changed to April 27th,2016. Every time I go for an ultrasound (once to twice a week now) my expected due date according to the baby's ultrasound keeps changing. First it said April 24th then 2 weeks later it said April 20th. Last week it said the 16th. I go for my next ultrasound in 2 days. My question is this, if the ultrasound's predicted date is based on measurements of the baby will the doctor change my due date again or is the baby just going to be huge?