For the first three months of my baby’s life, we were bottlefeeding him breast milk half the time and I would nurse him half the time. This meant of course constant pumping during the day and night. I was also always really afraid of running out of pumped milk! We came close a few times! After 3 months, though, I started to breastfeed him almost exclusively and was finally able to build up a freezer stash. I told one of my friends that I felt rich because I stopped constantly worrying about our pumped milk supply!