"i have had the mirena only for a month however so far so good. the insertions was not as painful as i expected maybe because my ob inserted it while on my period. he stated for easy insertion. afterwards little cramping but nothing major. the only downfall is its only been a month and i have been bleeding often. first week no spotting but second week spotting then third week spotting but little more. i don&#039;t think its my period just yet as its a week before but i hate the in between bleeding."