I don't know what to think!?!?!?

I suppose this isn't really a question more of a ramble that I want opinions on. I think I already know what I should do but just wanna know what other people think. It is a long story but I'll make it as short as poss : I've been seeing this guy for about 3 weeks he's 20 and I'm 17. He's someone that I'm really attracted to (I normally go out with averagey kind of people!) He'd always been really sweet and understanding and texted/rang me everyday. We went out on Friday to the pictures and for a drink and we were getting on fine as ever. He complimented me and stuff which was sweet and he seemed to genuinely like me. He knew I was a virgin and wanted to wait until it felt 'right' and said he didn't mind waiting because there was more to us than . I kinda took that with a pinch of salt cause I know what lads are like but he insisted he didn't miond. Anyway yesterday I went to his house and we did 'things' but the whole time he kept saying like 'jst tell me to stop if you're not