I've had the Mirena for a year and half... god, i look 5 months p...

I've had the Mirena for a year and half... god, i look 5 months pregnant, i know that I'm not. the same thing happened to my sister, when she took it out she lost wt and belly went back down.. I love not having my period but constant headaches for months now. One positive thing is that i haven't had any hsv outbreaks since I've had the Mirena, and my friend experienced the same thing, interesting. well, i have 4 kids, do not want anymore, but i can't stand how much wt I've gained and how big my belly is, soo I'm seriously thinking about getting it out and using the ova ring.