My first set back

So I weighed myself this morning and I was 1.5lbs heavier then yesterdays weight.  In analyzing yesterdays meals and exercises I don't think I did anything majorly wrong.

I started, just yesterday, to track my food intake with fitday.com and if we look at the macronutrient breakdown the only thing I am high on is my carb intake it should break down idealy to 20% Fat, 40% Carbs and 40% Protien.  40% protien at my weight is pretty high so I'll settle with 30%.  Also I haven't started any major weight lifting program to be in need of that much protien.

Also I'd like to point out that my calorie intake yesterday was 2345, and after figuring out my BMR for my weight and activity level for yesterday I needed 3035 calories just to maintain my weight. I still managed a ~700 calorie deficit yesterday. (2345 is still a rough guess, but I'd like to point out it is very close.  All nutrition is gained from labels as well as fit day's database of nutrients for raw ingredients like onions, tomatoes etc.)

So how did I gain a pound and a half in one day?  There are a lot of factors.  I had a full plate of wheat pasta with vegatables last night so in my opinion I am still retaining that meal.  More then likely I am retaining water from that meal.  Did I gain back 1.5lbs of fat?  No! Keep in mind the scale tracks total weight which includes fat and lean mass.  And lean  mass is not just defined as muscle either.  You need to account for access water, food still in your system as well as the muscle and bone weight you are carrying around.

Either way I am not going to let this minor set back discourage me.  This is the normal fluctuation of weight.  One of the sole reasons not to check your weight daily.  I did get down to a yearly low at 233.8 yesterday so that was very encouraging.