Breastfeeding is hard
For all the talk about how "natural" breastfeeding is, nothing quite prepares you for the feeling of being a complete and total failure as a mother quite like having trouble with breastfeeding. It's not easy, you don't "naturally" know exactly how to hold the baby, and he doesn't "naturally" know how to latch on. If your baby latches on easily and doesn't have trouble feeding, feel lucky. My wife had problems with all 3 of our kids because they each needed different techniques for feeding.
Your hospital should have access to a lactation counselor, or you can hunt down your local La Leche League chapter. If you're having any trouble at all, get in contact with them -- they can help.
(Late Edit) Another thing about breastfeeding: Don't worry or feel bad if mom can't produce enough milk to keep up with what baby demands. Just supplement with formula (or switch to it altogether if you have to), and don't let anyone make you feel bad about it.