This is quite embarrassing but I had the mirena coil fitted last month ( I have had one before ) and as I'm still breastfeeding my daughter I had no periods before the fitting , I got my period back within days of the fitting and it's just finishing now but I had a very odd looking "thing" on my panty liner today!
It's hard to explain but it looked like a bit of placenta , quite rubbery as it didn't disperse when I rolled the pad up , I thought it may just b a small clot at first ( it's about the size of the tip of my little finger) but as it didn't go away when rolled up I got a little worried :(
Sorry it's a bit gross