Not all at once I hasten to add detective
A feeds far too often for me to pump more than a couple of oz at a time!! But the shells collect 2-3oz from a feed first thing in the morning.
evil if you want to do it, then the Kellymom website is a good resource. Have a look at Back to Breast info or search for upping supply or re-starting feeding. Good luck 
Izzy that is dramatic/eventful. Hope you're feeling ok now.
Not sure I posted my bs either actually - or if I did, baby brain has struck again!!
In short, first contraction happened 30mins after DTD!! By about 3hrs later, they were every 10mins & regular. 4.5hrs & they suddenly ramped up to every 5mins. MW arrived about 45mins later, I was 4cm. I had some g&a about 30mins or so after that, and maybe 10-20mins later, I started pushing. I went from 4cm to baby in less than 1.5hrs!! It was all very quick, intense but straight forward. No probs whatsoever, thankfully. Count my blessings every day.