Confused

Have you weighed yourself every day? If you do that, you'll see that your weight fluctuates from day to day. Water circulates through your body, and the food you eat weighs something. If you eat more than usual, you will be heavier until that food has passed through your intestines. You can't expect to weigh less steadily, every day. Some days the display will even show a "gain" even though your are losing.

I'm not sure what amount you are referring to, but don't eat under your goal. You're supposed to hit it. You will lose weight from a calorie deficit, and that deficit is worked into your goal.