I just went back to work and I work Nights. Fortunately I work 3 12 hour shifts so my Emily is sleeping while I'm working. I try to pump 3-4 times a night. But I usually do not breastfeed at night (We sleep 10-12 hours a night!) I'm worried about messing up my supply. Going from pumping at night to nothing at all. I chose not to have day care, I am caring for Emily when I get home, waking up to nurse her, but I am interested in building up my nighttime supply and not losing it when I'm not working. Any suggestions?