I have missed a day here and a day there on my last round of bc pills. Usually I start what I call my "period pills" on a Sunday and start my period on a Monday or Tuesday. Well this time I started spotting on Monday morning and have done very little since then. This for me is just not normal.Just very light spotting here and there. It is now Wednesday and nothing. I have been on these pills for almost a year, and before that was on the shot for 2 yrs. Could this be implantation bleeding or am I freaking out for nothing but an irregular light period?