i have been on the pill for almost two years. I have not missed any pills and have taken them at the same time every day. For the past five months i have been starting to get my period on the second week of my active pills lasting until the end of the pack..; in other words i am bleeding for three weeks and stop for one week. does anyone have any idea what could be going on with me... this is the second time this has happened the first time they switched me to this brand of pills