I can't really say I know how you feel. I'm in my 50's . Although I have to say if I knew in my 20's what I know in my 50's, the 20's would have had a lot less problems.
I'd say that instead of thinking about intimacy so soon let a guy get to really know you. If he's wanting to jump in bed right away, he's not for you anyway. The longer you hold out ( not have sex) the better chance you have of finding someone who cares about the real YOU not just what they see.