Some hatcheries don't express ship chicks if there is more than 25. I ordered 19 from MPC and they said that if they don't arrive by the end of the 2nd day to call them and they'd give you a tracking number but they said don't call before that because you won't get one. They have to have a tracking number but give them until tomorrow morning, lunch time, and then call and get the number. Did they tell you they were express shipped? If they weren't express ship they'll likely arrive tomorrow baring any weather delays.