Post Mirena

Angel
We are ttc baby number 3. I had Mirena put in September 2013 and had it removed June 12 2015. I am starting my 7th day straight with a heavy flow and scary big clots. I'm wondering, is this normal? Has anyone else experienced this? When will it end? I feel like it isn't going to :( I can feel my iron dropping but supplements make me sick. Any advice? Thank you