I can relate to what you are going through. I married my husband a little over a year ago and we love each other very much. He is a kind loving person but he has a mother who is controlling, nosy, very opinionated and can be very pushy and his father backs her up with whatever crazy thing she says. We had the issues before we got married even, but I loved him so much leaving him was out of the question.
However, I was not going to marry him until a few changes were made. First thing being that he had to show me that he chose me over his parents. He had to show me that he was committed to me and to our marriage. He had always had a huge problem with standing up to his parents. Once he showed me that he was willing to do whatever it took to make a marriage work that is when I said yes to a marriage proposal. I knew that it still wasn't going to be easy as his parents are over the top to the point where I actually had to call the police on his mom because she wouldn't stop her screaming and caring on when she found out that we were moving 30 min away. (mind you we lived at that point 10-15mins walking distance from their house). That story goes on and on but I won't trouble you with the details.
Bottom line he needs to show you that he is willing to stand up for you and put you first over his parents. He is marrying you not his parents and that needs to be understood first and foremost because if leaving him is not an option like it was for me then be prepared for anything. If the stress gets to much go to a councilor even if it is just for the two of you learning to be stronger for the other. Counseling worked wonders for us. My husband is a completely different person emotionally not only with the way he deals with his parents but with his friends and co-workers as well.
Like everything it takes time and if you both are willing to go for it for the long hall it might be tough but it will work out.