Baby soon?!

So after an apt with a specialist to check on Cooper's liver (all was well) we have a decision to make. When do we want a csection? We still have an apt with my ob on Thursday, so we will talk to him then. Baby went from measuring 7lbs7oz last week to 9lbs2oz today. Either there was a mistake somewhere or holy crap this kid is gaining! I am 36 weeks today and he is measuring at 39/40. I want a Halloween baby, the husband wants Nov. 2, because that is the date he has been calling since the beginning.