He won't pee Infront of me??

So we were both in the shower earlier and he got out before me and stayed in the bathroom talking to me while I washed my hair. He then said "be back in a minute and left" when he came back I asked where he'd gone and he said "oh I went downstairs to use to other toilet, I needed to pee" and I laughed and went "should of just peed in the toilet in here haha" and he said

"I don't think we're quite there yet"

What?? I'm pregnant with his baby, we live together and in 2 months he's going to watch me push a baby out of my vagina but I can't see him pee😂😂 what the fuck man, is it only me who finds this weird?? I cant stop thinking about it!