Hello im 27 yeras old, I had my IUD remover febuary 18th and my doctor told me to wait a month to try to concive for another baby. My iud was in for four years and its the mirena kind and i still havent gotten my menstraul cycle yet, and im not pregnant have taken multiple tests and all are negative. After doing some research online it said somewhere i could have a serious medical condition, what is it that they are referring too?