Here's what I did: I went on Google and looked up RMR calculator. That tells you how many calories your body burns if you stay in bed all day. Then, I try to eat about that amount. You'll have to play around with it a bit and see what works best for you. If you want to lose 1-2 lbs. per week (not sure how accurate my info is here), you'll need to burn 3,500 calories to 7,000 calories. By decreasing your food consumption to the RMR number (again, this is just my opinion), you end up burning enough for about 1 lb. If you want to burn 2 lbs., you'll need to burn another 3500 calories during one week of working out. I venture to guess that you're not doing that with the amount you described. However, if you're just starting out, don't let this discurage you at all!!! You are doing great! As you continue throughout this journey, you'll probably want to workout at least 5, but more like 6 days a week, with strength training about 3 days a week. Try to keep as active as possible. Sounds like you have a very sedentary diet. Could you eat lunch at your desk and then walk during yoru lunch hour? That would bump up your metabolism too. I hope I didn't stick my nose where it didn't belong, since you just asked a simple question and I guess I didn't really answer it, but I just wanted to share that w/ ya. Good luck!