I've had the mirena for only about two months now and about two w...

I've had the mirena for only about two months now and about two weeks after it was placed my stomach ballooned to over twice the size it was before and I've gained about seven pounds that are unexplainable. I have not had a regular period which is understandable but I cant deal with the weight gain and bloating. I just had a baby four months and am trying so hard to loose the remainder of the baby weight,and I was doing extremely well until I got the mirena, and nothing drastic has changed about my diet or exercise routine.Does anybody have any idea how long this is suppose to last or what I can do to combat the bloating/weight gain besides getting it removed?