"It's a boy!"
She continued, "Our beautiful son was born late on Monday night. (28.01.19)"
"We've named him Ezra and we are completely in love. So thrilled that our family of two is now a trio. We love you gorgeous boy 💙"
This is the first child for the journalist, 34, and her music producer husband Carl Fox.
Natalia announced her pregnancy on air in September, and began her maternity leave from Today during the first week of December, a little earlier than she expected due to doctor's orders.
"You can't plan these things. That's what happens when you fall pregnant—nothing really goes to plan any more," she told Nine Honey at the time.