Ooh, I missed the part about pumping. Every 3 hours with a six hour break at night is what I did. For at least 20 minutes, both sides simultaniously. When it gets closer to the time baby comes home... add in the night time pumping session. Right now you need your sleep so you can take the NICU.
Drink lots of water. Bring your own, if you have to. Whatever the hospital doesn't use (breastmilk)... freeze. We were lucky, they had a milk kitchen at our hospital that stored and froze our excess milk and we took it home with us when we left (35 litres of breastmilk, just call me Dolly the cow). I know not all hospitals have this, so you may want to buy storage bags to do it yourself.
Also massage your breasts before pumping. Start at the nipple and rub in circles making a sprial to the outer most parts of your breast. It helps with letdown.
Get a pic of baby to help with pumping when you're at home. The morning pumps will be your most plentiful, you may want to pump a bit longer to take advantage.
Finally... get a good
pump. YOur insurance or SSI will pay for a hospital grade pump while your baby is in the NICU, I believe. We we're given the Medela Symphony at our hospital so I can recommend it. I know there are others good ones though. If the hospital one is not to your liking, check with your local LLL, they shold be able to help with a pump that suits you better.
TAke care. Pumping is awful, but it is very worth it.
I did it for three months, you can do it too.