I had a Mirena coil fitted on the 11th September, 8 days later I started a period - I am bleeding so heavily, with some signs of stopping but then the bleeding gets heavier again. Today is my 17th day of bleeding, should this be happening? I know after 3 to 6 months things will settle down, but if things keep going at this rate I don't know if I will be able to cope - it is so emotionally draining