Implant?

Any of you ladies have/had the birthcontrol Implant In Your Arm? I plan on getting it very soon and keeping it a secret from my parent and the only thing that can blow it is that horrible bruise It leaves. If you have/had it how long did the bruise last? how bad was the bruise? and is there a scar? If you want you can leave before or after pics if you have any. Id really like to find out as much as possible. Thank You.