Implanon
"I received the implanon June 2, 2015 and two weeks later I started bleeding consistently, every day. The bleeding didn't stop until mid March 2016, after being prescribed birth control pills, in addition to the implanon. It sucked. Felt like I was permanently  wearing a maxi pad for life.  I'm still in the works of trying to get to get it removed. The implanon sucks."