Cardi B and Offset Reveal , Son’s Name and Share Pictures.br The two rappers welcomed br a baby boy on Sept. 4.br On April 14, the couple finally revealed their son's name: Wave Set Cephus.br They also shared a couple br photos of the little guy.br The couple announced they were pregnant with their second child at the BET Awards in June.br The couple announced they were pregnant with their second child at the BET Awards in June.br Cardi came out br onstage in a bodysuit br that exposed her br pregnant belly.br The couple, who got married in 2017, also share a 3-year-old daughter, Kulture.br The couple, who got married in 2017, also share a 3-year-old daughter, Kulture.br Offset has three other children from previous relationships.br Both Offset and Cardi br took to Instagram to br reveal an 'Essence' br cover of themselves br with their loving family.