My husband wants to name our child's middle name, his name!?

Gabriela • First time mom. 23. Due 06.26.17
We both liked Christian, and now we're having trouble choosing the middle name. He said he wanted something that was in his name, so I thought he'd put his middle name but now he wants to put his first name. 
I hate his first name. What the hell do i do? He won't budge, and also he is not even supporting me or anything because he doesn't have a job so a part of me feels like he is not entitled to it. 
What do I do?
I want to put the child his middle name but he doesn't want. I just don't like his first name!