Can I get pregnant?

My bf and I were using condoms and he finished in the condom but he put his penis back in directly after taking the condom off. He didn’t even ask me if it was ok and he didn’t wipe it off so sperm could have been on it still I’m not sure of how much but I do know it doesn’t take much. Of course I’m in my fertile window too. What are the chances i could get pregnant from that. I know I sound dumb but I really was trying to stay safe.