"insertion was quite painful. cramping, although no bleeding. 

no period at all for the first 6 months. my first period was about 5 days long &amp; very light. 

but i gained 5 lbs since i got it. food cravings are ridiculous and i recently developed an unbearable odor coming from my cervix. 

monthly, i&#039;m supposed to check the string to make sure mirena is still in place, and doing so after my first period, there was a thick white discharge that smelled sour and wouldn&#039;t go away even after douching daily. i got myself checked for an infection because it was accompanied by itching when it first started (no multiple partners)  i thought it was a yeast infection, but i was clear; no infection at all. i think the bad outweighs the good for mirena."