We had sex and i havnt heard from him since?

It's hard to see if he used you since you haven't spoken to him since. He woke up to you caving and hasn't hears from you so might be thinking you have used him. Did you date before hand? Or was it a causal thing? Are you wanting something to happen from this? If so then you need to contact him. Text him and just ask how he is. I know you are waiting for him but that might not happen or just facebook him if you prefer that