iPhone 6 Shipping Notification?

I was wondering if anybody else that preordered the iPhone 6 from the Apple Online Store have received shipping notifications. I'm getting a bit worried. When I ordered my phone, it still had the 9/19 delivery date. I ordered the phone and a case. I checked the order status screen every day to which both said they would be delivered on 9/19. On Monday, both items were listed as "Preparing for Shipment." Yesterday, I received a shipping notification for the case but not the phone, however, the email still said the expected delivery date for the phone was 9/19. Today, the phone is still "Preparing for Shipment." Should I be worried? I have heard there may be shortage issues... I've usually always just waited in line for my phone, but wanted to try this out and save the extra hours of sleeping.