How long does the 3 week stall usually last?

Yep, I haven't dropped anything since Monday. :( Boo...but clothes are fitting much better or falling off...maybe it's our way of normalizing?

About two weeks but I still lost inches. Broke around the same time I stopped only eating 450-500 calories/day and bumped it up to 750-800.

 Stalls are not necessarily normal. I never experienced a stall that lasted more than 5 days. I counted every carb, all my grams of protein and every calorie. I measured and tracked everything. I also exercised a lot. You may be doing the same, but usually you will stall if you are eating too many carbs. Keep them below 40 grams. The carbs you eat should come from green leafy vegetables, cucumbers, celery, radishes etc. Avoid sweet potatoes, potatoes, oatmeal, corn and high sugary fruits. Drink LOTS of water.