Sometimes men will hold back in the fear of running the girl off if they move to fast so you taking the first big step will help get things into gear. I would suggest calling him, when you call him be honest. Let him know you really like him and want to move onto the next step.
I know taking the first step and professing how you feel can be scary, but the fact is why chance that he will meet someone else over something so silly as speaking up? Your a strong women and telling him how you feel isn't the hardest thing you will do in life.........why wait when your future with him is waiting on you to tell him how you feel?