Serena Williams has spoken candidly about her pregnancy and her difficult childbirth, with the tennis star revealing that advocating for herself and “being heard” by her doctors meant the “difference between life or death”. The professional athlete, 40, who welcomed daughter Olympia, four, with husband Alexis Ohanian in 2017, reflected on the pregnancy, as well as the medical emergencies she faced after welcoming her child via caesarean section, in an personal essay for Elle.