I'm having the opposite problem! Mirena fell out after a year of use with No periods during that year! On November 11th it fell out and still no period! I feel pregnant but test aren't showing a positive result yet. My husband and I did have sex maybe 2 or 3 times before it came out so is it possible to be pregnant that fast without even having that first returned period??? Has anyone else NOT had periods with Mirena and still found themselves pregnant upon removal? Any help would be great!