Mirena removed!!!

ashley • Baby#1 damieon born 12/17/08...9lbs 3oz ,,,,ttc#2
Okay so I had Mirena IUD in place for 6.5 years never had a period the whole time which was wonderful , well I had Mirena removed Oct 28,2015 I started to bleed Oct.31,2015 for 4 days not sure if it was my cycle or not but now here I am DEC.9,2015 and nothing no signs of AF coming , we are ttc#2 I've already taken 4 hpt all BFN , has this happened to anyone else ?