I ordered the first week of September and have whiplash from all the moves of my Estimated Delivery Dates, so yes, this is normal. August/September was a boom period for orders. All I say is, depending on your configuration, you’re getting close. Look for your EDD to narrow first.
Your VIN will be issued when your car is manufactured. Travel time will add 10 days to two weeks for delivery after VIN is issued. On the West Coast VIN to delivery is only a few days.