Random bleeding on Mirena IUD? I've had my Mirena since November of 2013. I get my period the same time every month on the IUD. The last time I got my period was about 3 weeks ago. A few days ago I started randomly bleeding. I'm pretty sure my IUD is there, I haven't been able to feel it since I got it, and the doctor said that was fine. I'm just concerned about the random bleeding. My significant other and I regularly have sex and I'm thinking maybe Mirena got shifted or something, I called the doctor and they said that it is normal to bleed out between your periods. Anyone else had this problem?