How abut considering: so much exercise and too few calories? Seems as though you should read the book again. I see no mention of fats which are supposed to be the source of energy for low carbers.

And 2airdales is correct: 2 weeks is not a long time to go without losing. If you had stuck to the plan the first time, you'd be farther down. Many people find that the "second time around" is much slower. Hope you up the calories and fats and maybe even the carbs. many people lose better at higher carb levels.