So here's the thing... I had my daughter in April of 2011. It took a year to get my period back, and it was back for a good 5 months, regular as clockwork. I missed it in October, and no sign of it since. And NO, I am not pregnant, so don't even ask! I have taken multiple tests and know my body when I am pregnant. My daughter is an avid nurser, she is nearly 21 months old now... it's just interesting that I had my period, it was regular, always on the 20th-21st of the month for 5 days, like normal, then just gone again. Anyone have any ideas or has this happened to you?