@Shygirly13,
Based on what you are saying here, I wouldn't advise you to go forward with sleeping with him soon because:
a) It sounds like you are attracted to him on a physical level, but not on an emotional one.
b) If you get the sense he is pressuring you, that's a red flag. Especially your first time should not happen because you are being pressured into it.
However, if you do want to proceed and get rid of the 'virgin card' (never liked that expression, really), my advice is: Let him woo you. Do the entire dating thing, getting to know him on another level than a purely physical one. That way, you can get a sense if you truly want to sleep with him, and also whether he is indeed pressuring you into this. Also, easing yourself into this more gradually might also help with your shyness.
Also, like Jespah said, use birth control and a condom. Don't budge on that either!