Family hates me now

Well my bf mother and sisters moved into our house. I helped them out so much and let them use my car when they need it. They started so much stuff with me saying how spoiled I am and blah blah. I am 26 weeks pregnant and work also. They said I don't let them spend time with there brother and that it's my fault. They never let me knew anything or how was I suppose to know I don't read their minds. So now my bf says he's stressed out Cass we aren't getting along. But what did I do to make them treat me like this. All I ever did was helped them out. I'm so sad and hurt and mad at myself for being kind cause of course I got f over again. I'm to the point I just want to leave and it's pretty sad cause it's my house and for me not wanting to come home sux. I just don't know what to do anymore...