Skyla
"The only painful thing about the insertion was the speculum. I have PCOS and was told skyla would be best for thinning my lining. I've had it almost a month. I've spotted everyday, and there is an increase in vaginal mucus but that's common when your lining is thinning out. It is taking a while for the string to move up and for to my cervix, but I haven't discovered anything crazy with this or anything bad. The cramps in the beginning were painful and my period lasted a full 7 days instead of the usual 4-5 days. Since getting this I've had 2 periods and that's totally awesome. Its regulating me and making it so much easier to track (if you do track your period and ovulation) and if anyone has Polycystic Ovarian Syndrome, I would get this."