Etonogestrel
"It's the most effective for not falling pregnant. I heard people getting pregnant on everything but the Implanon. It's 99.9% effective. I had fun with it. No kids and all the fun you can have. I have one child when I was 16 and got the Implanon right after I had him. I was too young and need to make sure I have no more for a while. When I get in my late 20s I will have another child but for now no. I'm 19 and too young."