virgin sos

okay so I've been with this guy for about 3 weeks and we've already done everything except for having sex. I never move this fast but every time I'm with him I just want to jump his bones! everyone says losing your virginity is a big deal so is it a bad idea for me to give this to him so early? it's all I can think about and it's driving me crazy!! I'm 17 and he's 19 and he tells me how much I mean to him and that it's totally up to me. I'm also nervous because I'm a virgin & he's had sex with 6 other girls, help!! ps I'm really paranoid about getting pregnant, he says we can use a condom & he will put out, thoughts?