I am on Ortho Tri Cyclen Lo pill. I took Plan B last Friday (because I have was having diarrhea and wasn’t sure if the pill was being fully absorbed), and my placebo pills started on Sunday. I normally get my period on Tuesday and now it’s Wednesday morning and I haven’t gotten it yet. I am having cramping that started yesterday. Is my period delayed because of the Plan B? Shouldn’t it be out of my system by now or does it take a little longer?