Ethinyl estradiol / etonogestrel
"My wife recently spent a week in the hospital including 3 days in neurological ICU because of a blood clot in her brain. She had 17 mini strokes and almost died. Oh, and she's only 25. She doesn't smoke, didn't hit her head, and no family history of blood clots. The neurosurgeon said it was because of the nuvaring. So please, don't even try it. I don't want anyone to have to go through that"