Photo: Neil Mockford/GC Images

Pippa Middletonisexpecting her first childwith husbandJames Matthews— but whether they’ll welcome a boy or a girl will remain a mystery for a little while longer.
James’ brother,Spencer Matthews— who is on the brink of becoming a first-time father himself with his wife, model Vogue Williams — recently appeared on U.K. talk showThis Morningand talk turned to his new niece or nephew.
“And your brother is about to become a dad as well a little bit after you withPippa Middleton,” said host Ruth Langsford. “So, do they know if they’re having a boy or a girl?”
“They don’t,” Spencer replied. “They’re extremely private and honestly, we know nothing.”
Pippa is following in the footsteps of her big sister,Kate Middleton, who kept the sex of all three of her children a surprise.
Neil Mockford/GC Images

RELATED VIDEO: Style Ace! PregnantPippa MiddletonSteps Out in White Eyelet Dress for Day at Wimbledon
“I think it will be great for the kids to kind of grow up together. We’re all looking forward,” he said.
“I know it’s bad to say, but I was kind of hoping the first child would be a boy so purely if you have girls afterwards, which we’d very much like to have, I always thought it’s nice to have an older brother,” said Spencer.
And he added that they likely won’t stop with one child: “We’d like to have at least three in an ideal world.”
HGL/GC Images

Pippa, 34,officially announced she was pregnantin an article for U.K. supermarket monthlyWaitrose Kitchen,where she’s been documenting how she’s keeping up her workout regimen while expecting.
“When I learned the happy news that I was pregnant, I realized I needed to adjust my four to five-day-a-week [fitness] routine,” she wrote, noting that she kept her pregnancy a secret from her gym instructor until the “riskier months” were over.
source: people.com