You will get a confirmation email the moment the order is placed, and a second email with a tracking number once the parcel leaves the warehouse.
Tracking numbers usually go live with the carrier a day or so after you receive them - if the link shows nothing yet, that is normal, give it twenty-four hours.
If it has been longer than that, or the tracking has not moved in a week, email support@critterless.com with your order number and we will chase it.