Your pre-order is shipped as soon as every item in your order is in stock. The product page of the pre-order item shows when we expect it to arrive.
Are you ordering a pre-order alongside items that are already in stock? Then we wait until everything has arrived and send your order in one parcel. Once it is on its way you receive an email with your track & trace.
Would you rather receive the in-stock items sooner? That is possible against shipping costs. You can read how to arrange this under How does a pre-order work?