Not really. It has probably finished fermenting, but, most agree that the yeast will continue to work cleaning up off flavors etc. 3-4 weeks in primary is commonly used. A wheat beer is one that is done quickly but I would go 2 -3 in primary then bottle.
That said, I got busy doing other things on my days off on my last, a wheat beer and left it in primary for 4 weeks.
Gravity readings are the only reliable way to tell if fermentation is completed.