It is Saturday. From my experiences, I usually get stuff from UPS around 4PM on weekdays. On Saturdays it's usually before 1PM.Now I get it!
If yours is coming via UPS you're one of the first to get a tracking number. If it's coming via Fed Ex, your tracking number will come later. Notice that no one, so far, has said "I got my tracking number and it's being shipped by Fed Ex"
Okay, maybe wishful thinking but UPS won't deliver till late in the evening (where I live) IF they do indeed deliver instead of running off with the package as they often do. I've ALWAYS had problems getting packages from UPS.
UPS = United Parcel Sucks