Momirov is a son of basketball players Snežana Pavlović and Jovan Momirov. His mother is a former Serbian professional basketball player who played for Radnički Kragujevac, Hemofarm Vršac, MiZo-Pécsi VSK and represented FR Yugoslavia national team internationally. She was a national team member at the EuroBasket Women 1995. His father played for Vršac and Profikolor during his career.