Etonogestrel
"I had the implant for two years. The first yr was nice. No symptoms or anything. Second was awful tho!! My bleeding was 3 weeks long. A got awful acne. Violent cramps, and so so so so moody. Like I literally wanted to kill someone. I couldn't take it anymore so u got it out. And let me just say, getting it put in is much easier than taking it out. I'm now on the pill. But that's just MY experience. It varies for everyone. I didn't get pregnant tho!! Hahaha"