Ladies how common is implantation bleeding? A little TMI warning now.. so last month i completely missed my period (which isn't completely abnormal for me, my period is ridiculous irregular, it has skipped months before but it'll usually come around the first week of the next month) well its already the 13th and i still haven't gotten my period.. yesterday i had a little bit of like brown discharge? Not sure if i could be pregnant or when the time would be to take a test.. help?