This post probably isn't for the boys.
I've had the Implanon birth control in my arm for 20 days now. After the first week, I stopped having pain at the insertion site, and wasn't experiencing any side effects. (Except possibly headaches, but I'm attributing those to stress and allergies.) I've been pretty happy with it so far.
Here's what's going on now: I have some nerve pain in my arm, but I can't tell if it's from the implant or from a pinched nerve. I fell last week, and nerves are tricky. It's about 3 inches below where the Implanon rests, and I've had some neuropathy in my left side before (meralgia paresthetica), so it's possible that it's more of the same, just in a different place. I'm going to go to the chiropractor this week and see if that helps. Even if it is a side effect of the Implanon, I assume that eventually that nerve will stop hurting, and it's not excruciating, or anything. I just have to be a little careful.
I'm also having some breakthrough bleeding (3 days now). This is pretty close to the time when I'd be having my period anyway, and it's much lighter than a regular period, so I'm not bothered. Plus, it's proof that, if nothing else, I'm not pregnant, so the implant is doing its job. I knew that in the first 2-3 months I should expect this, and it's not a big deal at all.
Overall: Still happy.