I pump when I first wake up, 3 times at work and sometimes after my LO goes to bed. So I always pump 4 times a day. I'm starting a new job in a few weeks, and although I'll be able to pump, I may have to cut down to 2 times at work the first couple of days.
If I'm emptying out my breasts twice during the day while at work, shouldn't my supply remain the same? I'd still continue to pump first thing in the morning, then add another at night after he goes to sleep.
On days when I have to skip a session at work, I notice I'll get more milk when I finally pump, but in the end my total for a given day remains pretty much the same whether I pump 3 or 4 times.
My LO is almost 6 months.