I got mine in '09 when DS#1 was 4 or 5 months old. We were not planning on having any more babies. My OB/GYN told me to check the strings monthly, which I did for awhile, and then I was like "eh, it'll be fine." Imagine my shock when the "flu" I had turned out to be morning sickness. The IUD had slipped down in my uterus and I was pregnant. Thank God it slipped to a place where it was easily removed and we welcomed DS#2 in '10. LOL. It happens.