Which one

So I’m 11 weeks pregnant. Me and the babies father broke up and he texted me multiple times that he does not want to be involved in the child’s life at all. It’s completely okay with me. I can do it as a single mom. But while we were together I told him I’m naming the baby if it’s a boy, after my father. Because he was my best friend and passers away 10 years ago this November. An amazing man with a good head on his shoulders, just overran the best father ever. I’m not giving my baby the fathers last name because oh well, I don’t want to. But would my son be Frank Garcia G... ll or would it be Jr?