I've been taking Ortho-Tri-Cylcen for 4 months now. Well, I was looking at the calendar and figured when I'd get my period. Starting on my wedding day! So, I decided to take a pack starting this month back-to-back so that next month I would do the same as well and not have my period. The problem is, I've been on my period for 13 days now!! This is not only uncomfortable, but the complete opposite of what is suppose to happen. Has this happened to anyone else??