I have been prescribed and using Yasmin for the last 5 years for PCOS and usually get my period 4-5 days into the sugar pills. My doctor says this is due to the time for it to get out of my system. This time however, my period came 2 days before the sugar pills and I still haven't stopped bleeding 14 days after my last sugar pill, (totalling 23 days bleeding). Not heavy bleeding. Light to moderate flow. I'm wondering what could be the possible problem?