Quoting máthair draíocht:" I feel like this time, as I'm older and more in tune with what I want to be as a parent, it'll be a little ... [snip!] ... its actually bad to pump when you are starting out? is that true? like it can cause damage to the milk ducts or something?"
They don't recommend pumping in the beginning because it can cause over production and possibly cause frustration with the baby if he's trying to eat and there's nothing in there. Plus they don't like people mixing bottles and milk from the tap.
With my first baby, I exclusively pumped until he was about 5weeks old. Then I got his issues straightened out and breastfed him the old fashioned way for another 6 months. My middle baby swapped back and forth without issue and I never bother pumping for my 3rd.