Cardi B and her husband Offset welcome Wave Set, their second child together, in September 2021... Cardi B can't believe how fast time has passed.

The 29-year-old rapper uploaded a carousel of photos of his baby boy Wave Set to Instagram on Saturday, where he was amazed that his baby boy was already nine months old.

In the photo selection, Wave is seen in two frames, first in an all-blue ensemble with a necklace around her neck, while in the next photo, the boy is posing with a happy smile. Cardi and her husband Offset announced that they were welcoming Wave, their second child, in September 2021 and shared photos of the three in hospital following her birth.

"We are so happy we finally met our son," the couple told news. "He is already deeply loved by family and friends, and we can't wait to introduce him to his other siblings."

In April, Cardi and Offset revealed the boy's name by sharing the first photo of his face in personalized glitter and a fleece jacket. The Grammy winner said that Offset, 30, coined the term. "When Seth Wave offered, I was sold! THAT SHOULD BE HIS NAME!" he wrote.

Cardi also shares a 3-year daughter Kultur Chiari with Offset. The Migos member is also the father of son Jordan, 12, Cody, 7, and daughter Kalea, 7, from a previous relationship.