Uh I'm stuck

So my parents are very religious, me not so much, they believe in no sex before marriage, no sleeping in the same bed before marriage, right now I am living with them because of a lot of reasons( too long to type) they make a big deal of me staying the night over at my fiancé house, they told me they won't allow it, but I think as an adult I should be able to make that decision! I realize I live in their house and it's their rules. My fiancé and I will be getting married this July should I just wait it out or just move in with him now? This is so stressful because we don't agree and we argue all the time!