Vaginal Ring

NuvaRing is a vaginal ring that requires a doctor’s prescription. The most common side effects are nausea, sore breasts and irregular bleeding.

 

How it works: The small, flexible ring contains estrogen and progestin, which stop ovulation and prevent pregnancy. It’s worn inside the vagina and changed monthly.

 

Cost: Up to $80

 

Rate of effectiveness: 91 percent