Serena Williams is glowing.

The 35-year-old tennis pro attended the 2017 Met Gala in New York with her fiance Alexis Ohanian.

WATCH: Serena Williams Shares Baby Bump Shot, Writes Heartfelt Message to Unborn Child

Dressed in a sleeveless emerald green Versace gown, Williams was all smiles as she posed for photos, showing off her growing baby bump.

Williams announced earlier this month that she was expecting her first child with Ohanian, co-founder of Reddit. The two got engaged in December.

Last week, the tennis star took to social media to share a heartfelt message to her unborn baby.

"My Dearest Baby, You gave me the strength I didn’t know I had," Williams wrote on Instagram, alongside a selfie showing her baby bump. "You taught me the true meaning of serenity and peace.” 

WATCH: Serena Williams Taking Maternity Leave From Tennis for Remainder of 2017 Season

“I can't wait to meet you. I can't wait for you to join the players' box next year,” the post continued. “But most importantly, I am so happy to share being number one in the world with you.... once again today. On @alexisohanian bday. from the world's oldest number one to the world's youngest number one. -Your Mommy."

Williams is taking her maternity leave from the sport after announcing her pregnancy. She plans to return to tennis in 2018.

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