Not even winning 23 grand slams could prepare Serena Williams for the biggest adventure of a lifetime.

In case you missed it, the tennis legend gave birth to a daughter earlier today, her first child with fiancé Alexis Ohanian. Reports indicate that mama and baby are doing well, and Venus Williams shared her joy prior to competing at the 2017 U.S. Open. 

"Obviously I'm super excited. Words can't describe," the athlete told ESPN reporters. 

Serena's been open in describing the shock she felt after finding out about the accidental pregnancy, which was confirmed less than four months after the Reddit co-founder popped the question and the pair became engaged. 

But through it all, she's also proven that if anyone can handle motherhood, it's this incredible star. Read on for her most inspiring and powerful takes on raising a child of her own. 

Congratulations to both mom and dad!

Serena Williams, Vogue

Mario Testino/Vogue

Serena Williams, Vogue

Mario Testino/Vogue

Serena Williams, Instagram

Instagram

Serena Williams, Burberry Launch

Astrid Stawiarz/Getty Images for Burberry

Serena Williams, Vanity Fair, August 2017

Annie Leibovitz exclusively for Vanity Fair

Serena Williams

PATRICK KOVARIK/AFP/Getty Images

ESC: Serena Williams

Timpone/BFA/REX/Shutterstock

Serena Williams, Baby Bump, Pregnant

Snapchat / Serena Williams

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