Am I in the wrong?

My boyfriend is 20 and I am 18. His parents are super religious and mine are not. He personally isnt religious at all. Well we've been dating for a year and 3 months and I asked him if he would like to move in together in a little over a year. That way we can save up beforehand. Itd be his junior year of college and my sophomore. He is down with it and im excited. Wellllll, his parents tried kicking him out when they found out (accidently) that we were having sex (This was almost a year ago). HE WAS 19 YEARS OLD. Well they cooled off and its fine now. But a couple years ago his sister moved in with her fiance a month before they got married and his parents FLIPPED out on them. Im just worried that if we move in together that it will ruin his relationship with his parents. I dont want to separate them but I also want to grow with my boyfriend. Hed be 21 and id be 19 when we moved out. Hes okay with moving in with me and he wants to as well but Im torn on what to do. Hes nervous they wont help him get loans for college, or disowm him or something. Am I wrong for wanting to live with him? I dont know what to do. Sorry for the long story. Any advice is appreciated!