Hi welcome to Health care magic forum.
Thanks for calling H.C.M,.F.
You text says that You had pains since few days, you got mirena
removed on last thursday. on friday you had pain and lots of blood and clots.
It appears that you have urinary tract infection
, which caused pain. on thursday you got mirena removed , probably during the infection which resulted in over bleeding.
Even other wise also some times happens like this.
still examination is necessory, so i advise you to consult you doctor for diagnosis and treatment .
Wishing that everything is fine.