"i have had 2 rounds (5 years each) with the mirena and never had a problem. this round they used the liletta iud which was inserted on june 1st. it was supposed to be better. it is not. i have had my period for 37 days straight. they should advertise that it&#039;s effective because you won&#039;t have sex since you  will have your period every single day. i have resorted to buying pads and tampons in bulk.  i&#039;m over it. biggest mistake and wish i spoke up and insisted on the other brand. stay away from this one. it&#039;s not worth it. i gave it the one star because i will take part blame for not doing more research."