Losing my Virginity

I am in love with this guy and I can imagine marrying him and having his kids and he feels the same about me. We have given each other promise rings and feel like it’s time to take that next step. He’s done it before he is 18 and I have not I’m 16. I’m scared cause I don’t really know what I’m doing but I feel ready and we plan on doing it in like a week. Any tips or suggestion?