1997 Dodge Dakota Engine turns over, But won't start

Engine turns over, but won't start. But eventually it starts. If I cycles the ignition switch about 6 times. The engine will crank and start. Runs a little rough until it warms up. Then for the rest of the day, it will start everytime with no problems. Thought it might be a filter filter, But the local auto parts store doesn't show a fuel filter that is in-line or in the tank for my truck. I'm thinking that when the truck sets for a long period of time (like overnight) that I'm loosing the fuel line pressure.