Pregnancy?

 This may sound dumb but I need some reassurance. My boyfriend and I are experimenting with dry sex. One day we were making out and he got a little excited so I felt wet in my butt ( I had clothes on). I waited a few minutes and went to the bathroom. I noticed a stain in my leggins and my underwear was a little wet and my skin too. I cleaned myself front and back. I started panicking the next day because I wiped my vagina with the same paper I cleaned the wet spot. The paper wasn't that wet but I'm worryng too much amd it's stressing me out and I start thinking I'm pregnant. Is that even possible? Help..