Welcome to HCM
Your symptoms suggest that you had pregnancy
, and now you are in process of Abortion ( Incomplete Abortion
). Though the failure rate with Mirena
is very low, it may happen for several reasons. I would suggest you to see a gynecologist immediately. You should expect her to do your pregnancy test, internal vaginal examination, scan and blood tests. Doctor may advise you to go for some minor surgical procedure, like Evacuation or D&C, etc depending on final diagnosis.
Wish you speedy recovery.