So under "My Reservations", you have a "NWA Confirmation Number" (eg: "ABC123"), but no "E-Ticket Number" (eg: "012-0000000000")? If this is a normal NW flight number, with NW metal, I'd call and see what's up. If it's a codeshare NW flight number, with CO/DL (etc) metal, I'd call anyway, and see what's up. 2 days on a revenue fare just seems odd. The longest delays I've ever had with ECVs is about 5 minutes, and on an award ticket was about 30 minutes. I can't remember ever having a revenue fare that didn't have a ticket number before I went back to "My Reservations" to confirm (again) the details.
Steve B.