Ethinyl estradiol / levonorgestrel
"I was so excited to try Seasonique and have only 4 periods a year.  I've been on it for a year now and during the first few months I felt great and didn't notice any side effects.  As of the last couple of months I've noticed some unexplained weight gain and my face is breaking out.  I've never had acne before and I exercise so I can only guess its the hormones.  On the bright side, my horrible cramps have disappeared and my period only lasts a couple of days, although they have been somewhat heavy.  I haven't decided if I'm going to try another method and see if these side effects go away."