Skewed idea of sex.

I feel like I have such a skewed idea of sex. I'd like to wait until I am married to have sex and I understand my reasoning. But I think about it and I feel like I still couldn't. Like, I'm married and now I can have sex? It is such a weird notion that I haven't have sex and then suddenly it's okay. Do you know what I'm saying? On top of that, I was sexually assaulted several times by both of my boyfriends in the past and that makes the idea of sex even worse. I just don't know what to do or how to think. Does anyone else have this problem?