Etonogestrel
"I've had this for almost 4 years now and I love it does its job I had my period for a couple months the first time I got it and didn't have once for 6 months to a year had spotting very rarely so I'm not complaining except I was bleed Brown blood alot for weeks which really sucks and not to mention the mood swings I have but nothing I couldn't handle.Best birth control I ever had."