"i love mirena. i used to be on birth control pills as well the shot but i can honestly say by far mirena has been the best. i&#039;ve had it for almost 11 months, i have not had any complications only down part about it would be the cramping in the begging but it goes away after a while. i didn&#039;t gain weight or got mood swings nor did my sex drive go down. i love this new birth control method i don&#039;t have to worry about getting pregnant. if you have heavy periods just like i do it reduces them after a couple of months you start spotting &amp; your period only last a couple of days compare to 8 days &amp; no you can not feel anything nor can your partner feel anything."