Am I just a piece of ass or is he into me as he says?

So I met this guy off a dating website and we built such a strong connection from the beginning. We share common interests and are looking for a relationship. After a few weeks we decided to meet and at the end of the night we ended up sleeping with each other. Now there was no alcohol involved or pressure. I guess you can say it just felt right. Though, I'm a little concerned now only because it feels like sometimes he's being distant. I hear from him pretty much everyday but our schedules are so opposite that we talk for just a few moments. He is in a profession where he is constantly busy, the thing is he hasn't yet taken me out on a real date even though he has said he is and I'm beginning to think if he's just seeing me because of the sex or maybe he really is busy.Whats the deal?