Emotional Hormones !! 🤦🏽‍♀️😩😭

So I just gotten back with one of my exes. To be honest I didn’t know if he would wanna be back in a relationship with me due to the fact I am pregnant and also it is not his baby . But I guess I wrong because he decided to get back with me . So I have been letting him come over my house to spend a night or spend the week with me but that doesn’t exactly work out the way I want it to . I get upset when he touches me a lot , or when he’s close to me , and it gets to the point where we argue and and I try to kick him out my house . I don’t mean to act this way with him because I love him and I just don’t really mean it . I find myself angry with him or upset bc he try to distance himself away from me . When he is not over my house and I text him or call him he doesn’t wanna answer my call or text me back because he says I do to much .I try to explain to him I don’t mean it at all and I can’t help it . Is it just me or I am the only one that goes through things like this ? Or how can I control my emotions when it comes to him?