I am on the placebo pills on my second pack of ortho-tri cyclin lo. The first pack of them I had my period for two weeks straight, and now I am on the second day of the placebo pills and have not started my period yet. Is my body just out of wack, or could the pill not be working and I am pregnant. I had unprotected sex one time a day or two after my last period so I should not have been ovulating anyways. I know there is still that chance, but what are your thoughts on this situation?