Taking to Instagram on Monday, the 28-year-old posted a photo of herself and her husband, rapper Offset, holding their baby in a hospital bed covered by a Louis Vuitton blanket.

The star captioned the photo, "September 4, 2021" and added a dinosaur and a blue heart emojis.

The WAP rapper gave birth to "a healthy baby boy in New York" on Saturday at 6:14 PM, Insider confirmed via a press announcement.

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"We are so overjoyed to finally meet our son," the couple said in the statement. "He is already loved so much by family and friends and we can't wait to introduce him to his other siblings."

It initially remained unclear what the baby's name is.

The mother of two announced she was pregnant and the BET Awards in June.

Cardi B, whose real name is Belcalis Almanzar, has been married to the 29-year-old Offset since 2017. The on-and-off again couple welcomed a daughter together, Kulture Kiari Cephus, in 2018.

Offset, who performs with the group Migos, also has three children from previous relationships.

"Chapter 5," he captioned a post on Monday, holding his new bundle of joy.

Cardi B documented her pregnancy on Instagram with glam photo shoots of the duo, and expressed their joy over the new addition.

"We listened to each other, communicated, prayed and then God blessed us and our family with another little blessing," Cardi B wrote. "Our home feels so blissful and very busy, but we are ready and so happy!"

The rapper recently made headlines for releasing her hit song Rumors last month with Lizzo, and defending the star against critics.