I don't think you have anything to worry about, the excess weight will come off eventually with a healthy diet and some exercising. Unless you have some issues with your hormones, like me. After I had my baby, I just kept getting fatter and fatter. Finally I was like 20 kilos fatter than I should be, despite of all the diets and running. Thank God, it appeared that I had some issues with my hormones, and now everything is back to normal.