I respectfully disagree with the sooner vs later on the replacement of your saddle. Right now, any saddle you try is going to hurt, and it's going to hurt for the next few weeks. My fist day on mine I thought I was going to I'd after 15 minutes. Today I ride the exact same saddle for 3 hours and then think I am going to die.

Not saying perhaps you don't need a new one, just saying that on day one, most of us don't know what we need...wait a bit, see if you adjust, then decide.