Welcome to the board!
After delivery - ask for a pump and ask to have someone show you how to use it.
Welcome! When I was in the hospital, I asked for a pump. I tried to nurse my daughter, but wanted to pump also to bring in my milk faster. The LCs were not terribly supportive, telling me I wouldn't get any milk yet so there's no point in pumping at all. BFing didn't work out for us, so I am happy that I ignored them and tried to find resources on the web (especially this board) to help me EP. I think it's wonderful that you're starting to research now, so that you'll be prepared in case you encounter nurses and LCs who are not familiar enough with pumping. The previous posters gave great advice about how often to pump during the first few days.
It might take a few weeks to build your supply, but generally speaking, the more often you pump (especially in the early days), the better. Kudos again for researching now, and here's hoping you a very smooth delivery!
Mom to Ashley Elizabeth, born 11/3/09