Hello I had the implant fitted in aprill 2013 and before that was on the injection. when on the injection i had no bleeding what so ever then come december 2013 till now i'v been bleeding almost every 2 weeks. the last week i'v had really heavy bleeding but i thought it was 'old bloody' as it was really dark brown/red. but would be big clots and really bad cramps. i was on for 9 days stright which is bizar for me. I stoped on the tuesday and then this morning had horific cramps thought nothing of it and then checked and had 'old blood' again. I am ausming its the stress of uni but does anyone have an awnsers?