Mirena

I had my daughter in Dec.2011. I only gained 14 lbs during my pregnancy, lost 6 lbs (her) prior to having the Mirena placed in Feb. 2012. I gained 15 lbs since having it placed but I don't blame it for the gain because I wasn't watching my calories or exercising at all. Now in the past 5 months I have been working to lose a lot of weight, but I am having a heck of a time. It's coming off extremely slow. I'm having it removed in Aug. for other serious reasons, but I was just wondering if anyone was having a tougher time with losing while on the Mirena.