Brewer's Diet?!

Morgan
How much have you gained while in the Brewer's Diet? And how closely are you able to follow your meals? 
2600 calories a day, unlimited water, with 120 grams of protein. I eat constantly but keep losing weight! I don't wake up in the middle of the night to eat. That's really the only thing I don't follow.  My midwife says I need to start gaining the weight soon but my body just doesn't! I believe my 16 month old keeps me running and burns off all the fat. I was 176 pounds prepegnancy and now 159 at 22 weeks.