Etonogestrel
"I got the Nexplanon October 2014 and I could say that for the most part it works. I get my periods about every 2-3 months but the cramps are horribly painful. What I do not like is that I have gained 60-70 lbs since I've gotten it. I'm considering taking it out or just keeping it until the 3 years are up. I really don't like how much weight I've gained from it."