Please help!!! I am confused and clueless?

I am engaged to be married to a guy that my family chose. Of course my consent was sought for and at the moment I was okay with the alliance. However, over the past few days I am not comfortable about the situation. I feel suffocated. Not only are his parents, but he himself is orthodox and expects me to do household chores. Whenever I bring the topic of me working in the future he shrugs it off by saying that he earns well and I need not bother myself. My idea of working is to be able to get out of the house and not be in direct interaction with his parents all the time, which might lead to conflicts. Also his sister seems dominating and every time he talks about her he always tells me how she says she will not let me do certain while she's around (trivial stuff not letting me sit in front with my husband in the car if she is with us; how she'll eat raw food cooked by me but will never let me feed her brother anything that she considers unfit, etc.). His mother also has already started demanding that I refer to her as mom and am not comfortable doing this. He is a self made man and his family has seen very bad financial times. But even though now that he earns a very handsome salary his standard does not seem to have come up in proportion. Also we do not know what social standing his other relatives enjoy and every time I try to talk about them he avoids the topic by saying let's talk about more important things than relatives. He is caring though to the extent which he feels is justified. We have been physical and have gone all the way. I feel guilty for having done this and am totally confused on how to handle the situation. I am not sure if he is the one for me. Even though he keeps saying "I love you and I miss you" I feel like he says so just to be able to have sex. Whenever I said no to getting physical he always said that looking at you is more important to me and that he has the kind of money to get himself the most beautiful of prostitutes to get physical with. I just don't know what to do and feel like I have gotten myself in way more trouble than I can handle. Please suggest.