Someone Please Help me Figure this Out

I’m 6 months Pregnant right now my child’s daddy & I are not together anymore , I’ve been doing everything by myself I mean everything but besides all of that my Bd is denying that he is my child’s father an wants a DNA test . He says he isn’t buying anything for my baby until the baby is born an proven that he is his Child . BUTTTTT the crazy part about it is that he wants my child named after him JR . This asshole is delusional I have already named my baby something else. He also stating that if I name the baby something other than his name he doesn’t want the baby to have his last name period lol . Would you name your baby after your child’s father if he is disclaiming your child & isn’t there financially and mentally while pregnant ?