As others have said, my best advice to you would be to leave. It will get worse. I have watched my mother for most of my life being in abusive relationships, one right after another. And i will tell you this, it never got better, only worse. Please be good to yourself and get out of that relationship. And please don't blame yourself for him abusing you. No matter what you think you may have done, it is never okay for someone to hit you. A real man would have just walked away, it makes me sick to hear of someone abusing someone. I agree about what other people say about being careful when you leave. The best way to do it, is without him knowing, when he is not home. Make sure you have somewhere safe to go, whether it is a friend's, relative's, or even a shelter. Hugs to you!