Ive heard it is different for everyone. I didnt spot at all after i had mine put in. I had mine in for a year and then found out i was pregnant with my 4th baby. But dont worry.....i was one of the lucky ones to be in the 1% of ppl who become preg on those. My SIL likes hers because it has lightened up her periods significantly.
at 3:42 PM on Mar. 15, 2011
I spotted for about 6 weeks after mine, but nothing so bad that I even needed a pantyliner. It was more annoying than anything.