HAC I'm so sorry this happened to you.
Firstly, there is never, not ever, an excuce for a man to continue when you have blatantly asked him to stop. Part of being in a relationship means that you have mutual love and respect for one another, and part of making love means that you can show that love and respect, mutually. If one party is not willing, then it is not love-making but non-consentual intercourse. The term rape sounds like a very harsh one, but if this man was not a long-term partner but a person you had brought home for the first time and you had got to a point and then asked him to stop and he didn't, how would you view the situation then? Would you not know in your heart of hearts that he had raped you?
There may be two reasons for his silence this morning. He may either be totally ashamed, not know what happened to him, and not know how to face you, after all, if he knows what you went through with your previous partner, then he also knows that he has now stooped down to the level of that previous partner, and he may not know how to admit to that. Or, and I know this may be hard to think, but it may be that he has had these types of relationships before and this is where he's crossed the line between loving partner and controlling partner. What do you know about his previous relationships? How long did they last? How and why did they end? You say that you have bought a house and are moving in at the weekend, have you exchanged contracts yet? This just seems like a big coincidence to me between this control and the commitment that you have made to your relationship by moving into your own house together.
One of you is going to have to break the ice and confront the situation, and chances are that it's not going to be him. You are going to have to have a long talk, ask him outright what happened last night, make it very clear that you have been in a controlling relationship before, as he well knows, and that you are better than that, tell him that being together intimately is a mutual thing, and that when you say no, you mean no, and if he can't respect that, then I would tell him very bluntly that your relationship has no future. You should not stay with a man who is prepared to violate you in this manner. You should have this talk as soon as possible, as it is inevitable that you will get to a point of intimacy again in the future, and if this issue has not been resolved by then, you will go into the situation in fear that something similar will happen again.
Be strong, stand up for what you are worth, and make it very clear that you deserve the best.
good luck x