boyfriend doesnt want me to sleep over

I have been dating my boyfriend for two and a half years. At the beginning of our relationship, I would sleep over his house all the time. It was really cool because we would brush our teeth together and he would make me coffee. I was amazed by all the little things couples got to do together in the morning and I imagined us in the future. Now, he doesn't want me to sleep over at all. I ask, can I stay over? It's always no... and I don't know the next time. Before this he was with roommates and he would say that he doesn't want me to sleep over while they are there because he doesn't know them. But now I know it was just an excuse because he has his own place and I still can't stay over. He won't tell me a reason why he won't let me, he just says no and won't expand on the issue. Is there any reason I'm missing here? Also, at the beginning we would have sex , and now we do not. He told me on this one that he feels like he is wasting something when we are not trying to have a child yet. I am soo confused because whenever I ask him about the future he talks about our four bedroom house with two kids. How will we possibly get there if I can't even sleep over?

Well, you should confront him why he can't let you sleep over anymore when at first he lets you. That's kind of odd and there's probably a whole underneath story that he's not telling you. If he can't tell you, then I would be suspicious. You have to talk to him about this.