I got my Skyla IUD Feb 14 2017, and it took about 3 months for my periods to regulate and for me to stop having spotting in between them. After that my cycle was regular (31 days) now all of the sudden last month I missed my period, so I took a pregnancy test 6 days after I missed and another one 2 weeks after and they both were negative. Now I just missed a second period (should have gotten it 4 days ago.) I took another pregnancy test and it was negative. i don't have any other symptoms, but I'm a little worried... should I go to the doctor? My Fiance suggest that it's probably just the idu, but I've had it for about a year now and never missed a period... and I looked it up and there is only an 11% chance you will stop having a period with skyla Could I be missing it for some other reason, or should I ignore it and assume it is the IUD ? Advice please?