Constant bleeding Mirena IUD

Hailey

I got the Mirena IUD 8 weeks postpartum. I was on day 5 of my first period after the baby, having very light spotting. Since I got the IUD I have bled non stop. Some days are heavy and some days light. It’s just so annoying. Is this normal? Should I call my dr? I had this same IUD a couple of years ago and it stopped my period completely. Anyone else with similar experience? It will be two weeks since insertion in two days.