I'm 23 years old and I've been on the Nuvaring for 4 months. I h...

I'm 23 years old and I've been on the Nuvaring for 4 months. I have been having really bad migraines almost everyday. I have had light bleeding ever since I started the Nuvaring 4 months ago. My doctor said I never had to have a period if I used Nuvaring, but I've never STOPPED having a period ever since I have been using it. My doctor told me I couldn't take a pill because I get migraines and if they prescribed me birth control pills they could be liable if it caused me to have seizures or something. So she suggested Nuvaring. If I can't take a pill, and I hate the Nuvaring I don't know what else to use?