I was thinking growth spurt too, but she isn't 6 months until the 28th so it'd be early, but I have no doubt there's a range! Thanks for the thoughts ladies.
ncuneo - I was worried it might be a little low, maybe I'll make sure I get 1600 instead. I lost about 20 right after giving birth but then my weight loss stopped and I started gaining. I've never had an issue with supply and have been told by LC's that I had a lot of milk...but I'd like to keep it that way!

Thanks for your advice.