Loosing virginity opinions

I’m sorry that this is so long but I just need Opinions and advice. So there’s this guy I’ve been talking to for a bout 10 months now and I really like him and he’s shown some interest in me. We’ve talked about having sex here and there but we never did and so a couple days ago i asked him when he’d be up to do it and he said whenever I’m ready... but idk I was talking to him after and I said that I’m scared only because I’m a Virgin and he’s not but he said it’s gonna be scary until you do it then it won’t be so bad. Mind you he’s never pressured me to do anything with him. But he knows why I’m scared to do it because I’m a thick girl and I’m not comfortable with my body and he’s completely okay with that and he said he’ll wait. I’m 17 so I know I’m ready it just scares me to do stuff like this because I’ve never done it and I just wanted some advice if anyone wanted to leave any... thank you