It can stay in Pre-Transit till after the initial printing of the shipping label until the seller hands the package off to the shipper and the shipper scans it into the tracking system.
Some sellers print the shipping label days before the product is ready to ship.
Sometimes the shipper doesn’t scan the package into the system. There have been one or two times that my postman picked up a package and it was overlooked in the initial scanning process. I couldn’t track it until one of the stops on the way to the destination scanned it in.