Serena Williams shows off her 20 weeks old pregnancy.

Grand slam singles champion Serena Williams announced on Snapchat today that she is 20 weeks pregnant with the photo above. This means that Serena was about eight weeks pregnant when she won the Australian Open beating her sister at Melbourne park.

Serena is currently engaged to Reddit co-founder Alexis Ohanian and was about four weeks gone at the time of the engagement.  Congrats to her.
Fans have been left speechless after realising Serena was pregnant during the first grand slam and did not drop even a set. See reactions below.