birth control
"I really like Implanon. Especially the part of not remember to take the pill. Plus I always gained weight from estrogen pills and soon as I went off the pill I lost 23lbs in two months. Once I had Implanon inserted back in February 2009 my period lasted a little longer than normal (2 weeks) and then it stopped.  It is now March 2010 and I had some light bleeding.  I am also taking Doycycline which I thought could have caused the bleeding.. but according to studies it is supposed to stop it. Oh and one negative thing is acne.. never had an issue before this. But otherwise works great at preventing pregnancies."