Coming up with the name for our son?!

Gabriela • First time mom. 23. Due 06.26.17
My husband and I don't live together, we both currently don't have jobs. We're looking though. I live with my mom and she is the one who pays for everything and helps me. He doesn't provide for me or anything. All he does is go to two sonogram appointments with me and marry me. 
Now he thinks he is going to name our son and I have no say. I told him, let's come up with a name together. And he is likebwell we both like this name Enzo, and I'm like yeah but let's come up with other names too. We shouldn't just decide right away. And now any name I tell him he hates. 
He doesn't support me, we don't live together and now he wants to be the only one to name our child. Like what the hell?!?
Am I crazy or is he being hella stubborn?