Etonogestrel
"Let's be honest, there is not one birth control that will work for EVERY woman. You have to just try and see what works best for you and your body. I got my Implanon in January of 2010, a few months after having my son. Insertion was SUPER easy, the anxiety was the worst part. I do have spot bleeding every few weeks but no need for tampons anymore, just the miniature liners which I keep in my purse. No weight gain, I actually work out on a regular basis and have continued to see my weight go down. I did have irregular periods the first year I had it and that was annoying but every birth control has it's downsides so it's up to you to pick which side effect you can live with. I say if the other BC's haven't worked for you, give it a shot!"