Keeping the family name?

Hannah

Okay so my bf and I are trying to get pregnant and if I do happen to have a boy he wants to name him after him, same everything, making the little boy the fourth one in his family. Now don’t get me wrong I have no problem with that, but what if the baby gets here and he doesn’t look like what his father wants to name him. Should I sit down and talk to my boyfriend about it or just go with it?