Not sure exactly waht your wuestion means but I might just be having a pregnancy dumb moment.

If you are meaning how many calories do you need to have to lose weight?? Then i would say approx 1200. having said that if you are breastfeeding you may need more. Try and get most of your calories from protein and healthjy low gi carbs and minimal from fatty foods.

Someone liek Combat Queen might know more as she is in the industry.

Hope that helps