Ethinyl estradiol / etonogestrel
"It seems that a lot of the people describing their experience with the NuvaRing are of the younger generation. I'm 31 and have been using the ring for the last 4 months after being on Ortho Tri Cyclen for years.  Within the first 2 weeks of inserting the ring my body went through changes as if I was in puberty all over again.  My breasts swelled, and became annoyingly sensitive, my face broke out with acne and I gained weight over two months time.  On top of all of this, I've been over emotional and tired.  The convenience of the ring is nice, but definitely not worth all the side effects for me. "