"i have had the mirena for over four years now its due to come out august 2013 and i have had a lot of downs than i do up&#039;s from it. i have had longer periods actually, they have lasted up to 14 days i have experience some bloating not much though and my sex drive is low. the most irritating thing would be my pelvic pains i have on and off from it. the one good thing i can say about it is very simply procedure and once in you don&#039;t have to worry about taking a pill every day."