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I know I may sound extremely paranoid, but I still want to ask so as to put my heart at ease. My boyfriend and I were fooling around and he rubbed his p__s to my vulva. I'm positive he didn't ejaculate earlier in the day, and, also, he didn't ejaculate or penetrate while we were fooling around. The day after, I started my normally heavy period. I'm not entirely sure if he was excreting pre-*** or not, and my period lasted for about 6 days, ending and starting with brown discharge and progressing into clumpy deep red blood. Is there a chance of me being pregnant? (also, if this isn't asking to much, a percentage would be nice--please) Should I be worried? Thanks so much for reading and answering.