Cardi B and Offset reportedly married in secret in September.
A marriage certificate shows the former "Love & Hip Hop: New York" star and Offset were married by a minister Sept. 20 in Fulton County, Ga.
The certificate uses the couple's legal names, Kiari Kendrell Cephus and Belcalis Marlenis Almanzar.
Offset, a member of the rap group Migos, referred to Cardi B as his "wife" during an acceptance speech Sunday at the 2018 BET Awards.
Cardi B and Offset got engaged during a concert in Philadelphia in October.
Cardi B announced her pregnancy in April, and confirmed in an interview with "The Howard Stern Show" the next month she's expecting a daughter.