I used bravelle along w/ follistim for my IVF cycle & my dr increased my dosage according to my b/w as well (& I got my bfp! :D). I don't think you have anything to worry about. Everybody responds to the meds differently, so it makes perfect sense that they will have to adjust your dose a little here & there once they see how you are reacting. I'm sure everything is already growing nicely & the adjustment will only make things better. :) Let us know how your next appt goes.