Ethinyl estradiol / etonogestrel
"I have been using NuvaRing for a couple years now and so far it's been great! Without some form of birth control I'm a roller coaster of emotions and Nuvaring has really helped balance my hormones and keep my cycle on a 28 day schedule. I have also noticed a significant reduction in cramps and much lighter periods. My only concern is that it's not going to be effective against pregnancy, but I have been using it as the directions instruct so I guess only time will tell, but they say it's just as effective as the oral pill. My boyfriend has commented that he can feel it, but it doesn't seem to be that big of a deal for us so far."