Daddy don't like the baby name....

Ok so I've name our baby in the beginning he said that's a woman job not the man so I named her now he's upset and wants to change it most of the females well nieces and nephews names begins with J and he wants to keep that going that shit to me is corny as hell only one I know name begins with D I'm 7 months I'm not changing my baby name he made it clear for me to give a name earlier so I did am I wrong to refuse I've a tradition as well my last name is generations from all the way to the 60s that's totally different from his so I'm being nice by giving her his last name we not married yet but I'm still gonna let her have his name