What are the limits (legal limits) of the First Amendment? What are the limits of freedom of speech in the U.S.? What is the friendliest state for the 2nd Amendment?
Another way to keep up your milk supply is to pump regularly when you are not nursing from your breast or are away from your baby for more than a few hours. If you are away for the day at work, my breast pumping schedule would be to pump every 2-3 hours for about 15 minutes or so.
I think it just depends on stimulation. It may take a while, but he could likely get a decent feeding right after you pump, but he'll probably need to eat again in an hour or two. Your body will adjust to the baby's feeding patterns in 2 or 3 days (well, this was my experience at least).