Despite Nintendo stamping the 19th of May as the official launch date of Wii Fit in the US, it is being reported that retailers will not have stock of the game until the 21st of May.

Nintendo’s highly anticipated fitness game launched across Japan in December last year, followed by Europe on the 25th of April and South Africa on the 5th of May.

According to GameSpot, the confusion over the US launch began when Nintendo started a nationwide advertising campaign stating that Wii Fit would go on sale on Wednesday the 21st of May.

Apparently this was done due to delays in shipments but the launch date was confirmed by a Nintendo representative to be the 19th of May. Yesterday Nintendo held a Wii Fit launch in New York City but only a select few were lucky enough to get a copy of the coveted Wii Fit.

Nintendo later announced that the May 19th launch date only applied to the Nintendo World Store in New York City, where the game is reported to have sold out in under an hour yesterday.

Numerous retailers have confirmed with GameSpot that the game only goes on sale tomorrow. Nintendo has not yet commented on the confusion surrounding the launch date and reports that stock shortages will plague North Americans wanting to get Wii Fit.

For more information on Wii Fit, check out El33tonline’s progress in the Wii Fit 25 day Challenge.