I'm so sorry that you are going through all of this.
It seems to me that I remember reading in one of your other posts that hubby didn't want any more children. (Or am I confusing you with someone else?) If so, that could be the reason why his behavior is so hostile. He may be feeling the pressure of providing for another child and doesn't know how to handle it. Babies do have a way of growing on you, so maybe he'll fall in love with the baby and things will improve?? I'm crossing my fingers for you, and keeping you in my prayers.