Going over to bfs house

So my bf lives with his aunt and uncle and 17 year old cousin. His parents currently live in Mexico. He’s 19. And we’ve been dating for 4 months. He invited me into his house like when we first started dating, but it was just a spontaneous thing, he showed me around and we watched a movie, something really casual. Recently he came over to meet my parents and the day after he asked if he could come and chill hangout at my house instead of like getting all dressed up every weekend to go out to eat. I said yeah that’s cool. Today he then told me that his cousin that he lives with bought this movie and if I wanted to go see it at his house. I said yeah that’ll be fun. But then he quickly changed it and said well maybe it’ll be better at your house. I said ok I’ll ask my parents. So later on today he asked me what we were doing tomorrow and he’s like are we going to watch the movie? And I said yeah as long as your cats there (they have a really cute cat) and he got serious and said well I was thinking maybe at your house. I don’t understand. I don’t wanna seem pushy and invite myself over if he doesn’t want me there. I’ve met a lot of his family. I get it that its not his house and that he lives with an aunt and uncle, but I’m sure he’s allowed to have me over. I’m just confused. How do I go about asking him without seeming like I’m pushing him to invite me? I don’t mind him coming over but my parents are pretty strict and not laid back like his aunt and uncle and I would feel tense and I’ve never had a guy come over to hang out.