I have been on NuvaRing for almost three weeks. Just a few days in I experienced headaches, nausea, cramps, a loss of sex drive, I have been extremely irritable. I just recently had a miscarriage and hadn't started my period so I decided to start taking birth control to make me regular again. I was told to keep taking it that side effects would lower and I would feel fine again soon. Still waiting for that to happen.