Pumping is fine. Recognize that going to work can be a huge source of stress for Mom due to the degree to which staying at home is often promoted as an ideal for women. Men are not immune to this either, of course. Twelve years on, it remains a source of misgiving for my wife. But at least now it crosses my radar more frequently.

Your wife is the primary caregiver. Be patient. Listen instead of trying to fix. Taking care of her is the hard role with which you have been tasked.