I know that many of you wants to have safe sex and control the pregnancy, but you can do real damage to your body. NuvaRing is vaginal contraceptive used by more than millions after it’s release in 2001. Many of them used it without any thinking about the nuvaring side effects and what they can do. Because of it’s direct contact with blood, nuvaring have lower doses of hormone, but the chemicals are released directly in the bloodstream. This can cause terrible side effects like blood clots. You must think twice before getting this into your vagina to control your pregnancy.