I had been taking Seasonale for 6 months and my drug plan switched me to Quasense which I have been using for almost 6 months. I never had any spotting or anything in between until now. I have had a full blown, heavy period for over 2 weeks. Even before the pill I never had a period longer than a week. I haven't missed a pill and always take it at the same time every day. Is this normal? Is there anything I can do?