the other girl

Ok I'm bout 9 weeks pregnant nd let me start off that like 4 months ago my so cheated on nd we decide to stay together nd i forgave him for that. Now we came to stay with his mom for a little while nd his brother has this girl friend first of all I dnt mean to talk trash but she been around the whole nebjorhood. I just don't like beening here some times I miss my house nd I could go back but my so would stay here for bout 2 more months. So I have been having bad dream like him cheating on me every time. And last night I went to the kitchen Nd he came out nd then few seconds later she came out but his brother wasn't around is that weird or wat ? Maybe I'm over thinking but it was just fishy. Wat do u guys think ?