Birth control...wont stop bleeding. It's called implanon.?

I got the implanon birth control at planned parenthood in early february. It bled for almost 3 months non stop. So i took birth control pills to even it out and it worked great. Then i finished and it was supposed to go back to normal but it started bleeding again, so i took another round of pills, now it's bleeding again....Once the implanon comes out will the bleeding stop and go back to being regular? Does anyone else have this problem with birth control?