birth control
"I only used Nuvaring for 8 days. I didn't have cramping or anything but in the first 5 days I gained 5 lbs despite exercising 5 days per week.  I also started salivating a lot more (on the verge of drooling), had a much increased appetite, was nauseous, and on the day I decided to remove it, I was very dizzy for most of the day, nauseous, and had a headache. I think I'll be going with a copper IUD."