How long did yours last and how heavy was it? I had some minor spotting the day of placement on Tuesday, but since then it's ramped up to a flow like a period, with clots and everything. It isn't terrible heavy though. My PP bleeding has been mostly stopped for a few weeks now other than a little brown spotting every once in a while. Could it just be a coincidence that AF came back right after I got the Mirena? I'm 8 weeks PP.