She was probably about 3 months along when she won the Australian Open back in January.
Serena posted to Snapchat saying she is “20 weeks” while wearing a one-piece yellow bathing suit and a little baby bump if you would call it that. It looks more like she ate a bit burrito.
In December of last year the couple announced they were engaged via Reddit.
Congratulations! I’m sure her sponsors are already making baby tennis rackets.