Each time the ignition is cycled, the fuel pump is ran for two seconds. Having to do it this many times could indicate you have a fuel pressure leak (or failing pump), if it is indeed the fuel pump.
Grab a fuel pressure gauge or have a shop take a look. I don't know what the number should be, but look at how it behaves. The pressure should not leak down at all. It should also continue to climb every time the ignition is cycled until it hits the proper pressure, and stays.