Could my baby girl just be growing fast?  I've done the math. Period started Jan 7th and would est due the 15th of October. Now after 3 ultra sounds and a doc visit I'm told I'm due  October 7 th. this one doesn't make a much science to me since that would make my ovulation very shortly after my period, less then a week. Is it possible little one is just growing a bit faster? All of this is a smidge confusing didn't have this happening with my first born. Any advise.  I will be calling him and asking but thought another opinion would be in order. Genetics do give us big babies in my family and part of me is just saying "she's probably just following the blood line" haha.