Maybe you need to add more protein and increase your calories into your range in order to get off this plateau. Taking too few calories makes your body hold on to every calorie it gets instead of being willing to lose weight. Fuel your body well, do strength training, and the weight will come off in time. Hang in there! Some lean turkey rolled around a piece of cheese wrapped up in a nice fresh lettuce leaf is a tasty way to get a little more healthy calories in to your day.