Okay here is my issue, my period is approximately two weeks late but I have been having protected sex (condoms) about twice a week every other week for the past month. However sometimes they slip off or are loose. I am still a fairly young adult so sometimes my periods are not on a set schedule like clockwork, they vary about 5 days. I havce taken 3 pregnancy tests over the past week and they are all negative. Today I experienced very light spotting, not enough to fill a regular tampon, and didnt feel any cramping like i usually do when I am on my period. Could this be the start of my period? or something else?