Talk to your Gyn...there is no reason to take the brand Seasonal. You can control your periods with any pills. My DS and I both take Microgestin. Its great for light periods and no periods.
My DS has a period every 4 months, I don't have one at all. they never came. It has been great for me. We are the success stories for sure. It has helped immensly with my migraines. I have been on the constant pill for a year and a half. no problems healthwise or other. It has been fantastic for me.