This isn’t the first time the expectant sports superstar has showed off her bump in a swimsuit. By way of a pregnancy announcement in April, she (accidentally) Snapchatted a photo of herself in a custom yellow La Blanca Anniversary Suit.
The following month, Williams posed on a boat in a black ruffled one-piece, cradling her growing belly as she enjoyed the sunshine following her wellness-themed Miami bridal shower.
This article originally appeared on PEOPLE