When I first went of BCP and started this whole process, I gained close to 20 pounds - which was LOT on a 5'2" frame. I managed to lose 11 of that, through exercise and cutting carbs/refined sugar, but with this last cycle, I gained back 6. My body is just super sensitive to the hormones, particular the progesterone. Unfortunately, this last cycle (my first w/ DE) resulted in a BFN...but I am trying to look at the silver lining that I can give my body a break from all the meds for at least a couple weeks and hopefully drop a few pounds.
But, like others have said, we all hope the end result will be that we end up pregnant - and then who cares if you have a little extra weight?