I had my IUD (mirena) removed August 24, 2011 and had AF for 3 days on August 26-28, 2011. It is now 11/30/2011 and I STILL haven't had a period. I get cramps and other symptoms of starting but nothing happens. I have missed 3 periods now. I really want to get pregnant but how am I suppose to know when I am ovulating if I have no period? I have taken many many tests and they all are negative. I even had an ultrasound and blood test done 3 weeks ago. They didn't tell me I wouldn't have a period afterwards. Help!