losing my virginity.

so I have been dating this guy for a month and him and I both Want to have sex. but were both virgins. we never met yet but when we meet that's when we were thinking of having sex. we met on snapchat. I'm 13 and he's 15. so I need everyone's advice. I have told him that my family involves teen pregnancy and I asked him if I ever got pregnant with his baby would he help me take care of his baby and he agreed yes. buy I don't know what to do. I cany talk to my mom about it so I'm asking all of you for help.