The mum-to-be seems to have let the news slip on Cutting Edge.

Vogue Williams was a panellist on tonight's episode of RTÉ's Cutting Edge and when discussing how she's adapted her usual exercise regime now that she's expecting, she might have revealed the gender of her first child. Vogue revealed that she's been receiving quite a bit of abuse online for continuing to keep active during her pregnancy, and referenced the size of her baby, comparing them to the size of an heirloom tomato. "I Googled it," she joked. "Is he happy in their now on television?" host Brendan O'Connor asked to which Vogue responded: "Yeah, he's delighted with himself!" The conversation quickly got awkward as Vogue looked to have shared a secret she didn't mean to.

.@voguewilliams talks about training during her pregnancy and has she just revealed her baby's gender?! #CuttingEdge is live @rteone now! pic.twitter.com/vH9Tsh3MNt

— Cutting Edge (@CuttingEdgeRTE) April 11, 2018

Yep, the model seems to have let slip that she and Spencer Matthews are expecting a baby boy, however, quickly tried to plant the seed of doubt saying: "Maybe it's a boy, maybe it's a girl." Vogue Williams announced the news that she’s expecting her first child with Spencer Matthews last month, sharing the news in a swanky spread in Hello! magazine. In an exclusive interview with Hello! Vogue and Spencer also explained: "We were together when we did the test, on holiday in the South of France over Christmas, and we were just like, 'Wow'. "Regardless of how long you plan it for or how long you’ve wanted it, it’s still like, 'Oh my God!' It’s such exciting news."