S.K.
I have had the Paragard twice now. I love it as a BC method. With the Mirena I have read there are hormonal side effects and you can get pg more often on that one. I did notice that my periods were heavier at first, but nothing too bad. I do also have endometriosis, but have not noticed a flare in those symptoms. My hormonal migranes have stopped since I came off of bcp a long time ago. Insertion and removal were super smooth both times. HTH