It's happy news for Pippa Middleton as her brother-in-law has welcomed his first child.

Spencer Matthews – who is James Matthews’ younger brother – and his wife Vogue Williams revealed they have become parents for the first time today with an adorable Instagram post.

Alongside a sweet snap of the tot’s legs, 32-year-old Vogue wrote, “This morning at 3:55am, we welcomed our son into a quiet London hospital… He is beautiful and healthy. We feel truly blessed”.

Meanwhile, Spencer shared the same message, but added, “Couldn’t be more proud of @voguewilliams,” along with a heart emoji.

While the celeb pair are yet to reveal the baby’s name, hundreds of their followers and celebrity friends couldn’t wait to congratulate them.

Read More: Spencer Matthews reveals that sister-in-law Pippa Middleton will be keeping THIS secret about her pregnancy

Lydia Bright wrote, “So special, so happy for you both 💙”, while Frankie Bridge posted, “Congratulations guys @spencermatthews … soak up all the newborn you can. Just the best. Hope your all doing well xxxx”.

Spencer’s ex Vicky Pattison also sent her congratulations, while Denise Van Outen added, “Massive congrats to you both.”

Wishing you all a pleasant Saturday evening from the Matthews’ x

A post shared by S P E N C E R M A T T H E W S (@spencermatthews) on

Vogue and Spencer met on Channel 4 show The Jump back in 2017 and got engaged backstage at The Lion King musical in January.

Just a few months later, Spencer announced the news the pair were expecting their first baby as he wrote on Instagram: “So… I’m going to be a father! Couldn’t be happier to be sharing these times with the love of my life @voguewilliams. We feel truly blessed.”

While Vogue added: “I couldn’t be more delighted to announce that we are expecting our first baby!

“Being with you @spencermatthews is the best thing that has ever happened to me, you are the dream.”

Pippa Middleton

Spencer, 29, stood by brother James’ side as he wed Kate Middleton’s pregnant sister Pippa, in an intimate ceremony at St. Mark’s Church, Englefield.

The reality star even got to rub shoulders with royalty as he welcomed Prince William and Prince Harry to the event.

Unfortunately, Vogue wasn’t allowed to go to the nuptials at the time given that her relationship with Spencer was so new.

However, when Spencer and Vogue married in June at the Matthews’ family estate in Scotland it’s thought Pippa and James were both there.