Guide to calorie deficits

Oh will you help me please!!? I'm, female, 5'6, and weigh153 pounds currently. I have not lost any weight this week and I'm doing everything right, well I thought I was. My BMI is 24.7 and my BMR seems to be 1780, although its different on every site I try. I am sedentary to lightly active.. depends on the day, work out for 20 mins a day and burn 185 calories with that and also pump milk 4 times a day for which I allow 120 calories burned. MFP recommends the usual 1200 and then add the exercise its 1505 calories to consume. I am eating all my calories but still the weight is not shifting.. I would appreciate your advice and help!!

Banks will probably have some better insight than I, but I think he's gone for the day now, so I thought I'd throw my thoughts in. First, any time you're breastfeeding (even for an older baby) you need to be very careful with deficits. That, and the fact that you are already within a healthy BMI and don't have much to lose, mean you want to have a very conservative deficit. A 1/2 lb/week loss goal would probably be best, IMO (which would put you at about 1500 before exercise/milk production).

Also, you may need to play with the activity level. Most moms of little ones are probably at least lightly active. Depending on how much milk you're pumping, you could be underestimating that - so if it was me, I'd try it out at lightly active first; in part to make sure milk doesn't suffer, and in part to maintain a conservative deficit.

Lastly, with being fairly close to goal, you definitely want to be doing some strength training in addition to cardio to maintain muscle mass.

Edit: Oh, and FYI, the 1780 would be your maintenance cals (BMR + activity level), not just your BMR. Your BMR is about 1425.

actually, considering her age, weight, height, and activity level, that does sound like her BMR, and her maintenance seems somewhere around 1950 or so (probably slightly higher considering she is nursing, and nursing mothers burn more calories, although if she's accounting for that separately...) I'd say probably stick somewhere in the 1600 to 1700 range plus exercise. Other than that, right on ladyhawk. I agree that 1200 is far to low for your situation. This is obviously predicated on the fact that we know nothing other than the basic facts you provided, and thus any advice given is very very generic.