Our carriers provide a mechanism for tracking shippments. At any moment you can see where your shippment is (tracking number should be available after receiving your package by carrier from the store). You can check the status of your shippment by typing the number of your parcel in the form on the website of USPS. A similar functionality is also available on the UPS page.
A confirmation number is assigned and provided, in an email, listing the order status as COMPLETED.