Tell us about your eating plan.
Do you use Fitday - do you want to provide a link? Are you counting calories? Doing WW? Journaling? Weighing and measuring portions?
Exercise is wonderful but diet is going to make or break your weight loss. No amount of exercise in the world can overcome too many calories, unfortunately. If you're really hitting the exercise intensely and nothing's changing, I'd definitely sit down and take a hard look at what you're eating.
And I second Nelie's recommendation for weight training to build some muscle