Pregnancy question

💜👣🍼Samantha • I am married have two little girls!!! I am pregnant with my little man💚💙#2016#
Hey lady I have a question I had an ultrasound yesterday I got to see my little man and she said he looked good and he is very active!!! My question I am 29 weeks 6 days and she measured my belly and said my belly or baby is measuring 32 weeks so does that change my due date I am wanting to know because baby is already head down and she checked my cervix and said its closed but I am dilated to a 1 I have never been in labor I have two girls but had c section schedule and she told me if I go in to labor to go to the hospital and they will do a few section!!! So if my baby is measuring bigger does that m an my due date is gonna change and I am further along or my doctor wouldn't explain anything too me!!!! Thanks lady