2003 Dodge Truck Fuel pump?

My truck would not start for me two weeks ago. It started up for 2 seconds and died out and then would not start again. It acted like it was trying to turn over but just didn't have gas. My brother left the key turned on and then tried again and it started up. The other day my husband backed it up to the garage and shut it off. Now it won't start no matter what we try. It still tries to turn over but seems like it isn't getting gas. Do you think it is the fuel pump? Or I have read that it might be a fuse. If so where is the fuse located at? Any knowlege or advice would be greatly appreciated.