C.
I had this IUD inserted last September after giving birth in May. I had a very slight amount of spotting in October and NOTHING since. No period, no break-through bleeding and no spotting. I love it. I did have a follow up with my doctor 6 weeks after having it placed. A co-worker has had about the exact same experience. And, she had a follow-up 6 weeks after as well (we have different doctors) Hope this helps!
I know they say the period eventually goes away after a year, but, I was pleased it did not take that long to kick in...I guess everyone is different, but, it has been my experience that most of the people I have talked to - it did not take a year for their period to stop.