What should I do about my relationship?

What should I do about my relationship?

I love my girlfriend and have been with her for 5 years. Everything is perfect but our sexual connection.. We are both 22 and haven't moved out yet. I'm sexually frustrated because our parents don't allow us to be together in our bedrooms and because of that we don't have sex very often if not at all. We plan to get a place together though. We go places and stay in hotels and have sex sometimes. She feels like sex once a month and less is fine, but I'm not ok with that.. Now keep in mind I am her first person she had sex with, and for some reason sex hurts her and is uncomfortable. She likes other things like foreplay and me going down on her more than sex which is fine for me. But when we get the opportunities she doesn't want to use them all the time. I feel like we should because I want us to get used to it. Like for example she took me on a trip to California for my birthday and are in a hotel for two nights. I want to use the opportunity to have sex or something sexual and she doesn't want to because she doesn't think every time we are alone like that together we should have sex. She says she wants to have a good time and it not make her feel uncomfortsble and because she is tired because we have been up all day. I just feel like we should do it And we are on vacation and we should. The last time we had sex was 2 1/2 weeks ago.. Because it was the night of my birthday.. Before that it was a month ago.. I feel like I make her happy.. I want to be happy too.. Am I just being a jerk and over exaggerating? Or do I have a point.. She says things would be better once we move in together.. But I don't know... I'm supposed to marry her but I don't knoe.. If we can't connect about this then is that a red flag?.. Someone help me...