[LucyLouWho]

If you he didn't go inside you while you were on top of him, you shouldn't have anything to worry about. Also, if he had sperm on his hands and then touched you, there is a chance you could get pregnant, but it's not a big enough chances where I think you have to worry. It's not likely to get pregnant from that because the sperm dies shortly after coming in contact with air.

If you're worried you might be pregnant, the only sure way to know is to take a test. But I think you have nothing to worry about.