don't know if there's a specific pattern overall here, delivery date probably depends on many things
in my case, upon original order my estimated delivery date was "early Dec"
- on 11/21, after ~10 days of "in production" status, estimate on My Tesla became "Nov 30 - Dec 14"
- on 11/23, production complete/in transit status and estimate narrowed to 1wk period: Nov 27 - Dec 4
- on 11/25, got 1st phone call from my DS (only occasional email contact with DS prior). Was told my car arrived by truck that day 11/25, scheduled delivery appointment for 12/2.
Note: Found out local SC here in town is busy preparing deliveries for all of western Canada, so even though my car is physically here already, 12/2 was first available appointment. Of course they have do all the normal prep and detailing, plus install the centre console I ordered. I assume had the SC not been as busy I could have taken delivery closer to 11/27 or 11/30 - so yes towards the beginning of the 1wk range, as suggested by the OP.
Anyhow, happy how quickly things progressed - turned out to be 29days total from confirmation to delivery for my MS