I had dry humped. I was wearing my underwear and thin leggings and he was wearing his underwear and shorts, but I felt a little damp. During that time I also had a lot of tests/quizzes and assignments due, so I would stay up late studying. Therefore, my eating and sleeping schedule was all messed up. After a few days of when I had dry humped I got my period( my period is irregular btw), but it only lasted for 2 days (that has never happened before to me). Now this month as in Dec/12, I am on my 5th day of period, but it is very unusual to the my other periods. I've looked online and all I see is implantation bleeding that is similar to what I am experiencing and I've been really stressed and scared. Could it be that I am pregnant or could the two day period and unusual period this month be a result of change in lifestyle( sleeping and eating habits messed up) or hormonal imbalance? Please help!!