I inserted mine an implanon on 26 October 2017 and am still bleeding. There was a brief 2 week period in December when the bleeding stopped but it has been almost 5 months of continuous bleeding. I just read something that says you could be bleeding for the full time you have the implanon in. My doctor it will be 6 months at most. I could be bleeding for 3 full years? What causes the bleeding?