While Ross has yet to make any sort of announcement, the news seemed to be confirmed when Camille posted a photo on Instagram, showing what appears to be gifts from Ross to the new baby.
A few hours later, she also posted a photo of a bundle of 'It's A Girl' balloons from what looks to be like the inside of a hospital room.
Ross' daughter also celebrated her new sibling by posting a photo on Snapchat, accompanied by text that read, "Got too much to lose, man I got a little sister."
Ross and Camille's relationship, however, remains unclear. The rapper has recently been rumored to be dating Twitter executive Liz Hagelthorn.