1 lb per week is about what you should be aiming to lose. If you're over 200 lbs, 2 lbs per week is safe and attainable for you. 2 lbs per week is simply too much for you. I would say that 1300 calories is far, far too little for your body, and would not be enough to support adequate milk production for your baby. You are burning way too much.
For starters, readjust your goals to create a deficit of no more than 500 per day. That amounts to roughly 1 lb per week. You're not fat enough at 163 to lose that much. :) (Good problem to have.) It took you two years to put that weight on, and it will take time to take it off, too. So shelve the idea of being able to do 2 lbs per week. You can reasonably attempt to lose about 3% of your remaining weight loss goal per week.
Whatever your range is, then you need to add 500 calories to it. What's your height?
Your doctor said to eat a "little less" to start losing, with maintenance at 1800 calories a day. Why are you going lower than that? Listen to her advice. Did you ask her why she said you would not lose on the range Babyfit provided? (Which was what, exactly?) I would not, at the VERY bottom, eat less than 1700 calories if I were you... that's minimum safety range of 1200 + 500 for breastfeeding. It will take longer to lose, but you will not put your supply at risk.
Here's how your calorie range is calculated here on SP. To account for your breastfeeding, you would need to add 500 calories per day to the TOP AND the BOTTOM of your range. www.sparkpeople.com/resource/calorie_calcu
Also be aware that many nursing moms may find that they need to lose weight more slowly, or that they can't lose those last few pounds because the body tends to hold on to your fat stores for milk production.
There are several things going on here for your calorie burn per day. How long on the treadmill does it take to burn 500 calories, and why did you choose that number? That's a LOT of walking.
1) Your base metabolic rate (which is anywhere from 1500-2000 for most people.)
2) Your activity modifier (1.2 for day-to-day activities). You multiple your BMR by this number. That's what you burn each day.
3) Your breastfeeding. That's about +500 calories per day.
4) Your exercise. That's also reported here as 500 calories.
Did you tell your doctor how much you were exercising? Are you taking any rest days?
Edited by: DRAGONCHILDE at: 3/1/2013 (20:17)