On the first two publications of the account, the adorable hairy baby sleeps.
Serena Williams has been extremely open about her pregnancy, birth and all the struggles that they went through. At the time of her baby shower on the theme of 50 years, many stars have come.
"Back in my jean shorts 2 weeks." she captioned a selfie showing off her trim figure.
Just hours before, Serena posted a sweet picture of her daughter wearing a baby gro which said: "Smart and strong like my mama".
So far, Alexis has only posted twice but she's already gained more than 28,000 followers.
Alexis looks angelic in the image as she rests her head on her hand as her mom cradles her under her arm.
Her parents topped off the photo with cute caption, writing 'Thinking about mommy and daddy'.
The Grand Slam champion accidentally announced her pregnancy on Snapchat earlier this year, when she posted a picture of her growing belly with the caption "20 weeks" publicly.