At the end of the wedding meal, the seven blessings (sheva brachot) are said in birkat ha'mazon.  The final blessing is on wine. This is the only required festive meal after the wedding. Any festive meal on the subsequent six days is optional but, when held, all the blessings are required.

 

Sheva Brachot: Celebration Period

If the bride and/or groom had never been married before, there are seven days of celebration (don't go to work, no tachanun). If both bride and groom were married before, there is one day of sheva brachot (in birkat ha'mazon) at the meal eaten after the chuppa, but three days of celebration (don't go to work, no tachanun).  

Note Neither husband nor wife should go to work; however, if the husband gives his wife permission, she may work.