Lora Webster with the U.S. women's sitting volleyball team, tries to block the ball during a practice in Edmond, Okla., on July 24, 2021. She's five months pregnant and expecting her fourth child. This is the second Paralympics in which she's been pregnant, and the third time during a competition. She and her American teammates face Brazil on Friday, Sept. 3, 2021, in the semifinals as Webster tries for her fifth Paralympic medal. (Bryan Terry/The Oklahoman via AP)

Lora Webster with the U.S. women's sitting volleyball team, sets the ball during practice in Edmond, Okla., on July 24, 2021. She's five months pregnant and expecting her fourth child. This is the second Paralympics in which she's been pregnant, and the third time during a competition. She and her American teammates face Brazil on Friday, Sept. 3, 2021, in the semifinals as Webster tries for her fifth Paralympic medal. (Bryan Terry/The Oklahoman via AP)

Lora Webster with the U.S. women's sitting volleyball team, sets the ball during practice in Edmond, Okla., on July 24, 2021. She's five months pregnant and expecting her fourth child. This is the second Paralympics in which she's been pregnant, and the third time during a competition. She and her American teammates face Brazil on Friday, Sept. 3, 2021, in the semifinals as Webster tries for her fifth Paralympic medal. (Bryan Terry/The Oklahoman via AP)