My little guy is just over 4 months old. We've been exclusively breastfeeding, and I would like to pump when I go back to school (I'm a teacher) without completely stressing myself out. So, my plan is to nurse around 7am, pump at 12 on my lunch break, pick up around 4:30pm and nurse the rest of the night. I know that I'm not going to get enough in that one session and will need to supplement, which I've come to terms with. I just want to know if I'll be able to pump once and still maintain enough of a supply to nurse after work/at night and on the weekends. Any experience/advice would be appreciated!