So my boyfriend and I were watching TV and things got a little frisky and one thing led to another and we started dry humping. He came in his underwear and I was wearing leggings and underwear, and after we were done I saw there was a wet spot on the inside of my thigh. I was also on the second day of my period and I went to the bathroom right after to check the spot on my leggings and change my tampon. Is there a risk of pregnancy? It was our first time doing that and I'm afraid and need some reassurance. Thank you!