PLEASE HELP! NOT LOSING WEIGHT

You could try upping your calories for a week or two, then go back to 1300 calories? Another idea is to exercise more than you are.

Everyone hits a wall sometimes, try not to get discouraged!! I would be mindful of any processed white refined sugars and carbs. Even though you have been keeping a close eye on your calorie intake you really need to focus on sugars and carbs intake as well. Both of these break down in your system and turn into fat. I wouldn't limit your intake dramatically but I would just try to focus on 100% whole wheat breads and raw sugars and really try to stay withing your recommended daily goal. I hope this helps! Good luck!

This is good advice in general, but a calorie is a calorie no matter what you get it from. I suggest that you make sure you log every single thing as accurately as possible. Also, your height and activity level could be important factors as to why you aren't losing weight on 1300.

I spike and dip constantly. Three weeks isn't that long of a time. Wait for a few more weeks and see what happens.

Also take measurements - scale weight is not the most accurate basis of fitness. It measures EVERYTHING.

If you still haven't moved in a few more weeks, I'd suggest weighing everything to make sure you are portioning correctly.

Looking at your diary for yesterday, you list 3 oz. of boneless beef short ribs as only 131 calories. That's probably seriously underestimated; the USDA database for cooked beef ribs (boneless, lean only) is 295 calories for 100g (3.4 oz). (Source: http://ndb.nal.usda.gov/ndb/foods/show/3737). Or is 3 oz. the uncooked weight? Even so, it seems a little low. Are there any condiments you're not including--mayo or mustard with the tuna, for example? Those little things can add up. Calorie counting only works if you're brutally honest with yourself.

If you are being brutally honest, then you're probably in a plateau due to more water and solid retention, adaptation to endurance exercise, etc. I went through a plateau for nearly 2 weeks at the end of March and in early April, but I was still below my exponentially smoothed weighted average (the thin purple line in my weight chart: https://www.beeminder.com/brianogilvie/goals/weigh).

Thank you so much! You are absolutely right , just noticed today i logged 4 strawberrys and its giving me below 20 cal?? Im sure this is not correct. I will sure pay more attention from now on..

That's probably about right. Strawberries are very low in calories. You could probably eat as many strawberries as you want.

The other thing to note is that if you are exercising you can appear to be on a weight plateau but actually your body will be changing. Developing muscle adds weight but tightens you up, so you can weigh the same but still be losing inches.
The scale isn't everything and not the only measure you should use.
Keep with it, weigh everything you eat and ensure you drink enough water. It will start to come off again.

When I cook something homemade I just add all the parts in myself rather than rely on some random Internet person's entry of a homemade meal.

Jenilla1's advice is great. I do a lot of home cooking, and I always start by entering the recipe in MFP, using USDA data or product labels, instead of trusting someone else to have been accurate. It adds 5 minutes for each recipe, but then I know with reasonable accuracy how many calories are in what I cook. I also take the opportunity to cut back on fats when possible: the Rick Bayless salad dressing I made last week called for 3/4 cups of olive oil - for four servings! I cut it back to 1/4 cup and added some water (about 1/4 cup), and it was perfectly fine.