The couple, who welcomed their first child, Sebastian Taylor Thomaz, in February, are now planning to have a larger wedding this weekend, reported Contactmusic.
The pair will host the ceremony at a country club in Wiz's native Pittsburgh.
Wiz, 25 and 29-year-old Amber, became engaged in March last year.
Meanwhile, the couple are completely besotted with their son and Wiz said he just spends his time trying to make Sebastian smile.
"He just kills us with his smile, we do whatever we can to make him smile," he had said.