Watch the Trailer for Serena Williams' Intense HBO Docuseries 'Being Serena'

Serena Williams shows off new wedding ring
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The tennis ace opens up about her fears for her career following her pregnancy news in a new trailer for her docuseries 'Being Serena.'

She’s one of the biggest tennis stars in the world, so naturally, when Serena Williams discovered she was pregnant, one of her first thoughts was her career.

The athlete shares her reaction to impending motherhood in a new trailer for HBO’s docuseries Being Serena, airing on May 5.

The five-part series chronicles the tennis ace as she navigates her career and welcoming her first child, a baby girl named Alexis Olympia, with Reddit co-founder husband Alexis Ohanian in September.

The 45-second preview opens with a shot of Williams cradling her baby bump while discussing her reaction to finding out the news.

“When I realized I was pregnant, I was like, ‘Oh, my God. How am I gonna play?’” she says in the clip.

The 23-time Grand Slam winner is then shown working out while pregnant with her baby girl.

“I put so much pressure on myself,” she says. “I wanna make sure that I’m the best. I don’t know if there’s anything left for me in tennis, but I’m not done yet.”

The star is seen cradling her newborn while Ohanian, 34, also makes a blink-and-you’ll-miss-it cameo with the wee bubba.

Williams recently told ET that motherhood has been “amazing” and she can’t wait to expand her family even further.

“I definitely want two [kids], God willing," she said. "But right now, I want tennis as well. So, I'm going to wait and see what happens."

"It's definitely not easy," she added. "I have this undying drive to be the best that I can be. Whether it's [being] a mom or playing tennis or doing my designing, I just want to do the best that I can."

See more on Williams and her gorgeous family below.

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