16lbs in first week.
Patience, Grasshopper.
You're not in a race. Stay off the scale. I know it's gratifying to step up and see a smaller number, but then when you hit a stall (and you will) it will blow your tiny little mind and you'll be here screaming "HELP".
Spare us and yourself the agony of The Stall Panic. Stay off the scale. Weigh yourself only at your surgeon's office.