HELP?!

I'm looking for someone to tell me if they feel the same way that I do because sometimes I think I'm the only one. So I'm afraid to get into a realtionship with any guy because I'm afraid all they want is sex and i don't think I'm ready for that yet. For example I'll start talking to a guy and then I automatically ask the qestion do I want to have sex with him because I automatically assume he wants to with me and idk it stress me out and I stop talking to them. Can someone please give me advice ?!?