Vogue Williams gave birth to a baby boy in the early hours of yesterday morning.
The presenter and her husband Spencer Matthews welcomed their first son together at 3:55am in London.
Spencer announced the news to Hello magazine, saying the new arrival, who came into the world weighing 9lbs, was "beautiful" just like new mum Vogue (32).
The Made in Chelsea star (30) confirmed that mother and baby were doing well after the birth.
However, the proud dad didn't reveal the baby's name, which is set to be announced by Hello at a later date, according to a spokesperson for Vogue.
Bookies have tipped that Michael and Freddie will be favourites with the couple, at 2/1 and 3/1 respectively, with royal names Harry and William also in the mix due to the couple's connection with the royals.
Spencer's brother James is married to Pippa Middleton, the sister of Prince William's wife Kate. Hugo, the name of one of Spencer's best pals, is also a popular choice.
"Our son arrived this morning and both mother and baby are doing well," said Spencer.
"I'm so proud of Vogue and we both feel truly blessed to welcome baby Matthews into the world. He's beautiful, just like his mother!"
Taking to social media, Vogue shared the first glimpse of her baby boy with the world.
"This morning at 3.55am, we welcomed our son into a quiet London hospital," she said, posting a cute snap of her touching her little one's tiny feet.
"He is beautiful and healthy. We feel truly blessed."
The couple's bundle of joy arrived late, with Vogue revealing earlier in the week she had passed her due date.
Smitten Vogue thanked Spencer for his support during her pregnancy and said he had been "amazing".
"Overdue means a slightly grumpy wife who tends to fall asleep quite a few times a day! He's keeping me happy and being a great support... you're the best," she wrote.
The new parents tied the knot earlier this summer, marking the special occasion with an intimate and private wedding party at the Matthews's family estate in Scotland.
Glam Vogue kept things Irish, wearing a Paul Costelloe design for her big day.
"She's a great girl, good fun. She's delightful to dress and has a good sense of taste," the designer told the Herald earlier this week.
"It was all done very quickly. We dashed around to her apartment near Battersea one evening.
"We just walked into her bedroom and put it on and we went, 'Yeah, this is showbusiness - got it right'."