i don't think you were in the wrong. you should have help when he's home.. taking care of a baby all day is a BIG job.. i'm in the same boat, but i suppose my husband seems more understanding and patient about it.
either way you have a point and he should want to help with the baby, ITS HIS SON (i'm assuming)
(((((you))))) guys just don't understand what it's like to care for a baby all the time.. i wonder if they'll ever understand. so frustrating