Weight Loss
This forum is really just for technical problems with our software, so you may want to ask this question in open discussion where many more people will see it.
But I will say that one week is a very small amount of time to judge your fitness and diet program. You really need to think in terms of months, not days when it comes to weight loss. To lose weight all you have to do is eat less calories than you burn. Everyone, and I mean everyone who does this will lose weight. I know you say that you eat less than 1625 calories per day, but nearly everyone I know underestimates the calories they actually consume each day. Being off 100 calories per day could mean a weight gain of 10 pounds in a year.
In your case in your first week you didn't see any weight loss in your first week. You have to create a calorie deficit of 3500 calories just to lose one pound and that means the most you can really hope to lose in a week is only 1 or 2 pounds. I know it is exciting to hop on a scale a see that you lost 5 lbs (17,500 calories), but if you do this in one week it's usually just water weight and you will just gain it right back on another day. Your body's weight will fluctuate throughout the day and month for many reasons due to water retention. This why you shouldn't be alarmed by daily or weekly fluctuations in your weight. You need to look at the longer term trends.
You attack weight loss from two fronts, diet and exercise. Your goal is to create a calorie deficit each day while making sure you don't lose lean muscle mass. If you're not losing weight after several weeks you then need to reevaluate your diet to see if you're miscalculating calories consumed (remember food labels are allowed to be 20% off by the government) and/or your calories being burned.
Also, when you first weighed yourself your water retention may have been at a low point and when you last weighed yourself it could have been at a high point. Thus you could have actually lost several pounds and not realize it because the scale doesn't indicate an increase or decrease in water retention.
For now just stick to your program. After several weeks if you're still not having any progress I would suggest trying to increase your calorie deficit through a combination of diet and exercise.
Cathe has written several articles related to this topic that you might want to read:
WEIGHTLIFTING MYTHS DEBUNKED
WHY YOUR BMR IS IMPORTANT FOR WEIGHT LOSS
WHY YOUR TDEE IS IMPORTANT FOR WEIGHT LOSS
ARE YOU COUNTING CALORIES CORRECTLY?
HOW MANY EXTRA CALORIES ARE YOU REALLY BURNING?
as I was a week ago...