Well, going by the bulge on her stomach, we think she was referring to her pregnancy.
Serena had a small baby bump, which she showed in profile as she held up her phone to a mirror.
The suit had two gold buttons and a cut out on the side with narrow straps.
The tennis star got engaged to her fiancé, Alexis Ohanian last December.
Someone commented ” Serena Williams is 20 weeks pregnant, which means she won the Australian Open while being pregnant and didn’t drop a single set. The GOAT.”