Need clarification

Okay so I know that in order to end up pregnant the guy must cum inside the woman. But on Saturday night me and my boyfriend decided to get a little wild and I was on top , "riding" him with my thin panties wet , keep in mind he was wearing his boxers and sweatpants. Once I got off, I notice that he was wet too, and so I'm scared because he had cummed awhile before that, so maybe both of our fluids might get combined and can cause pregnancy? I'm not sure, someone help lol.