I need some advice

Okay so I'm extremely uncomfortable with the fact that I keep walking past my father in law room and he's constantly watching porn. I'm 22 weeks plus pregnant and I don't want my child around that. I think it's completely gross it's creeping me out and I'm extremely uncomfortable about this. Does anyone have any suggestions or ideas as to what I can do. Do I say something to my S.O. I'm starting to want to move back in with my mom not to mention he smokes cigarettes and I'm just really annoyed 😒