May 27th my bf and I were fooling around, before we did I got period cramps despite I wasn't on my period. I gave him a bj and I didn't know if there was Precm on his dick. After the bj my hands were dry and felt like nothing was on them, he played with my hands while talking to me then about minutes later rubbed around my clit and never fingered me, I was very wet. After that date I saw brown blood in my undies but I don't know if that was before or after it happened. My period is due June 11th and I have been getting emotional, my boobs are tender, and I've become irritated. My friends say it's impossible but I'm still paranoid