I'm trying to lose weight and I have startes three weeks ago, and want to continue till Beginning of June ( 3 months from now). I'm 18, I weight 140 pounds and want to lose around 19 pounds. For the past three weeks I have been eating 1200 calorie and just recently I have uped my workout regime. 5 days a week I would go kickbox, once a week I would go do weights, and once a week I would go for a run. Lately I've been constantly hungry and after some research i get the notion that 1200 is not enough. Is it ok for me to up my Calories to 1500?