Same for mine. Build-to-order i5/16GB/256, ordered 3/25 with an estimated delivery date of 4/8-4/15. Payment processed and shipping initiated 3/30 (China local time), original estimated arrival date according to Fedex was today (April 7 according to Apple, which seemed weird), but it spent an unplanned overnight in Shanghai at the Fedex location and new ETA is Friday. Looks like within the last hour it's transitioned to "in transit" status, so it's on the move again.
(All of the above just informational for others; I'm in no way angry or irritated or complaining, given the current context.)