What trim/options did you order? The main holdup lately has been for the higher trims (502A and up). Sure, the PB constraint might hold you back, but there are lots of older orders that still haven't gotten build dates. Still waiting and placed my order 2/9.
You're starting to hit the time that really you should see your truck get scheduled. That being said, I'm a week in front of you and still waiting, so who knows how long it will take. Best of luck!