I am on Seasonale, a birth control pill that only makes me have my period once every 3 months. Well the last time, I "skipped" my period for about 2 maybe 3 weeks because I was going on vacation and did not want to be annoyed of my period. Finally on July 23rd or possibly the 24th (I don't exactly remember) I started my period It lasted about 4 days. Then on the 5th I started my period randomly again even though I was taking the pill properly. This lasted 3 days, and I think I may have had some mild cramps, but I could also be confusing it with my period of the 24th... Then on Saturday the 9th I had sex and when I got home afterwards and went to the bathroom I noticed some brown blood maybe? I thought maybe it was just because we went too hard but this brown discharge has not stopped yet.. Any ideas if I am over thinking?

Really just over thinking. While pregnancy is of course a possibility, it can be many other things.