Shipping information

So I ordered a phone on December 12 and they charged my account December 15 and changed my delivery time from dec 21-23 to dec 20-22 and a few minutes later my status changed to we are preparing your item for shipment. But the problem is that it’s been like that since Wednesday and tomorrow is the first day of my delivery window and nothing has been updated. Did anyone go through this and did they update it the day before ?? I’m scared cuz I feel like it’s going to be delayed.