I just went through this in the hospital. They kept telling me to give him formula but I kept trying and pumped when he wouldn't latch well, and my milk was in by the time I got home. If I hadn't been lurking here for so long I wouldn't have know what to do.
Just proves knowledge is power. Congrats on your LO! keep it up. You will have rough periods, & we're all here to help. Oh,don't pump during a GS. It'll make it last longer. I learned that one the hard way!