1lb gain?!?!

yes..dont weigh yourself so often..we all gain and lose a few lbs from day to day..its mostly water retention.

I am so bad for weighing myself everyday and I know I shouldn't because I don't like what the scales say. A week last Sunday I went for a 15 mile walk and I weighed myself that evening and then when I weighed myself the following morning I had gained 2.5lbs (normally I weigh less in a morning not 2.5lbs heavier).

Another thing that doesn't make sense, I weigh 1.2lbs heavier than yesterday morning which means I have to have eaten 3500 calories above my TDEE when actually I ate 1300 calories (my daily calorie goal)

A) Nice avatar.
Hide the scale so you only hop on it once a week, and focus more on how your clothes are fitting. Even better, start taking your measurements with a tape measure.
C) You said you've been at this for one week, right? Give your body some time to adjust. Like others have said, there are a lot of fluctuations that go on throughout the day that cause weight to go up and down. Did you have a high-sodium meal? That may be the culprit (evil water weight).
D) Stay positive!

drink a liter of water so so you gain 2lbs.

What did you mean by this?

Possible Causes - Your digestive System if fuller - always weigh once a week at the same time of day wearing the same style clothes - this will give accurate figuires. water retention.
womens monthly cycles can add up to 3lb on & around your due time.
doing a lot of exercise can initially cause you to gain as you will burn fat but gain muscle - get yourself a measuring tape! and measure your neck, back, bust, tummy, hips, thighs same again do this on the same day at roughly the same time.
I swear by this as I had a similar thing to you - was doing well 1st couple of weeks then was working out 5 times in a week and I gained 1.5lb!! i'd not cheated and My sister (Mrs Moticator as I call her) said start measuring urself weekly so i did and low and behold even on the weeks where I stay the same or have a 0.5lb gain i have lost cm or inches from places it really keeps you motivated and stops the disheartend feeling of the scales! DONT BE A SLAVE TO THE SCALES

Good luck for the furture weeks

Jo:flowerforyou: :smooched:

That happened to me last week. I felt very disheartened too and was ready to have lots of rubbish, because well, I might as well if I gain weight while dieting... but then, I told myself to wait for another week, to see how it'd go and then pile on the junk food.
And a week later, the scale showed I'd lost weight.
Really, if you pay attention to what you eat work out a little, there's no reason why you should gain weight. There is water retention, etc, but it also depends how serious you are with your diet.
I run 5km everyday and watch closely what I eat, yet it seems it's taking forever for me to be a top model!!!
But I'm kinda glad I have to work hard to loose weight, that way i think twice before even considering junk food.

it takes a while for your body to adjust to your new cals and its normal for weight to do up and down a few pounds over the day from water, you might have just caught it at a high time on weigh in day!
If you ate out over the weekend though, your counts could have been off. Its best to properly weigh as much as you can to get accurate cals.
working out will also cause temporary gains due to water / glycogen from muscle repair.
There is no need to be 200 cals under, your goal already includes a deficit and eating too little can affect your loss just as bad as eating too much.