Serena Williams may have inadvertently let slip that Prince Harry and Meghan Markle are having a girl.
The 37-year-old tennis pro, who is herself the mother of one-year-old daughter Alexis Olympia, was being interviewed by E! News this week when she was asked to give her advice for new mothers.
That's when Serena referenced a friend of hers who is currently pregnant — and referred to that friend's baby as 'she.'
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Whoops? Serena Williams was sharing parenting advice this week when she referenced a pregnant friend — and called the friend's baby 'she'
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Secret's out? She did not say that the friend in question was Meghan Markle but might have let slip that the royal is having a girl
Sharing her advice, Serena said: 'Accept mistakes and don't expect to be perfect. We put so much pressure on ourselves.
'My friend is pregnant and she's like, "Oh, my kid's gonna do this," and I just looked at her and I was like, "No, she's not." I'm like, "No, you're not,"' she said.
While Serena didn't name the friend as 37-year-old Meghan Markle, the Duchess of Sussex is certainly her most well-known pregnant friend — and Serena did just throw her a baby shower.
It's unclear if Serena realized she made the slip, referring to the baby as 'she' rather than 'he' or 'it.'
She also quickly moved on from the potential gaffe, saying that she, too, 'had all those high expectations' for motherhood that she had to let go.
'Everything is not gonna go as planned,' she said. 'You just gotta go with the flow.'
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Close: Serena and Meghan (pictured in 2014) have been friends for years, and Serena said she was giving a friend parenting advice
Flashback: Serena is pictured with her husband Alexis Ohanian and Meghan and Prince Harry's wedding in May 2018
Serena has been there for Meghan throughout her pregnancy, throwing her a lavish baby shower in New York and even stocking her up on diapers.
The tennis legend has teamed up with Pampers diapers as a spokesperson for the brand, and while speaking with Reuters about the collaboration, she admitted she 'already sent Pampers across the pond.'
The recipient of those diapers would be none other than the Duchess of Sussex, who is expected to give birth to her and Prince Harry's first child in a matter of weeks.
Meghan has not revealed her exact due date, though a formal statement declared that she and Harry are 'very pleased to announce that The Duchess of Sussex is expecting a baby in the Spring of 2019.'
The former actress is believed to be due in late April, early May.
There has naturally been quite a bit of speculation about the baby's gender so far, though the couple has not confirmed anything.
Adorable: Serena Williams has partnered with Pampers as a spokesperson for the diaper brand. Her one-year-old daughter, Olympia, is pictured wearing the brand's new diapers
Friend goals: In an interview, the tennis player said she sent diapers 'across the pond,' presumably to Meghan, who is due in late April, early May
Lavish affair: Meghan had a baby shower in NYC in February to celebrate her first child. Serena (pictured left before the event) helped plan the party and even paid for the
