Today, 01:54 PM
Okay. 3 oz combined in a pumping session is normal output. It's the most I ever got when pumping at work, and many times I only got two oz at a time. So, what I would suggest is to add in a fourth session if needed. I needed to pump every two hours at work, which was four sessions, in order to keep up.
I also had suboptimal pumping output with the Medela Freestyle. Switching to the Pump In Style yielded me an extra 2-3 oz a day, which is exactly what I needed to avoid supplementation. The Freestyle just seems underpowered to me, though its portability is nice.
You are right to avoid a schedule with your baby. That is actually most likely to decrease your supply--you really, really want to demand feed. :) So it is great that you are back to that! It is normal to experience some degree of sleep deprivation with a newborn, and this generally does not impact your supply. Rather, frequent milk removal improves your supply! So I would keep baby close at night, and let baby feed as much as baby wants. That will help your supply, and take the burden off needing to pump massive amounts of milk at work.