Hi, my Dr prescribed me this to regulate my cycles. Before he prescribed it I happened to have my period. He hasn't fully explained when I should take the pills so as soon as I got them I took the full 10 and had a period so I had two periods the month of October. It is now November and I've had no period yet but I'm not sure when I would start as I said I have two last month by accident. He didn't happen to say anything when I mentioned this nor anything when I told him I felt nauseous and sick. Is this just a side effect? Could I be pregnant? When should I take my pills if no period comes this month?