What was your delivery window? Are they missing it?
I got my notification for a ship date of 5/11. My window was 4/29-5/12. I think I know why they went ahead and shipped. With standard shipping they were cutting it close.
Maybe they'll come early.
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I've learned some pretty nice stuff about UPS shipping this launch. It's good that you can do that, even if it would've been better to have your watch before your trip.
Mines shipped by UPS Expedited Worldwide. My shipping window was 4/29-5/12 so if it does come on the 15th, thats three days over the shipping window.