Should I just move in with him? 🤔

So I want to move in with my boyfriend. We've been dating for two and a half years and we love each other dearly, even talk about marriage. He's 22, I'm 21, both in college, and have only ever had sex with each other. The only thing really stopping me is my parents. They would completely destroy me 😨. My father is a Lutheran Pastor, and I respect his advice always. But when it comes to young couples moving in together before marriage he believes it's irresponsible. Like marriage but without the commitment. I don't want to disappoint him or my mother, but I'm an adult and I have a serious partner I want to spend everyday with. What do y'all think?