The more I think about his name, I reckon his first name is actually Baby with Paul being the second name.
And (my mind wanders during isolation) I'm imagining a conversation along the lines of..
Sam (rubs belly) "any ideas what we can call it Paul?"
Paul. "that? It's a baby"
Sam. "Oh I love it, hello baby". (rubs belly again)
8 weeks later
"Congratulations it's a boy!!!"
"look Paul baby is a boy"
"let's give it my name as a middle name"
"oh I love that!"
Billie "what's he called?"
"it's Baby Paul"
Hopefully, isolation due to corona won't last long.