Leap Day baby! TV3’s Karen Koster has welcomed her second child

Leap Day wasn't all about the proposal news it seems – there was some very exciting baby news too.

Xposé presenter Karen Koster welcomed her second son yesterday, February 29, meaning her new arrival will technically only get to celebrate his "birthday" every four years.

Karen and her husband of three years John McGuire seem to be making a habit of welcoming their children on significant dates. Their first son Finn was born on New Year's Eve, 2014, as John mentioned when making the happy birth announcement on Twitter just now.

John James McGuire was born yest on leap day, that's NYE and the leap day done. Going for Xmass and Paddies day next, then we'll stop kissin

— John McGuire (@johnmcguire72) March 1, 2016

"John James McGuire was born yest on leap day, that's NYE and the leap day done," he joked. "Going for Xmass and Paddies day next, then we'll stop kissin."

After waiting until late October – four months into her second pregnancy – to confirm the news, Karen admitted that it was tough keeping it under wraps.

"I’m absolutely over the moon," the 35-year-old told The Irish Mirror at the time.

"I feel like I’ve been keeping a secret. It is such a relief to finally tell people and get my belly out."

Although she said she felt "blessed" to be expecting again, Karen admitted she had some new worries this time around.

"I know now that I can survive the night feeds and all the labour and that gory stuff.

"But now my worries are more like, 'How am I going to go to the bathroom when I have a baby who wants his bottle and I’ve Finn wobbling around?'"

Well, she's about to find out! Congrats to Karen, John and big brother Finn.