Pregnant Sylvia Jeffreys dotes on her son Oscar, 10 months, at the park in Sydney

Channel Nine star Sylvia Jeffreys announced two months ago that she was pregnant with her second child.

And on Tuesday, the Today Extra host enjoyed a day at the park in Sydney with her 10-month-old son, Oscar.

The glamorous 34-year-old sat on a picnic rug and doted on her baby boy as he practised walking with his mother’s help.

She dressed in an all-black ensemble consisting of a baggy T-shirt and leggings, which she teamed with Nike sneakers.

The blonde appeared to be wearing minimal makeup, opting for just a light radiant base, mascara and tinted lip balm.

She cheered on her lively little boy, who looked cute as a button in a striped shirt, green trousers and a hat, as he learned to walk on his own.

The doting mother then cuddled Oscar and gave him a kiss on the his head, before lifting her bub up into the air.

After bringing him back down, Sylvia smiled as her son’s interest was diverted by something on the grass near his mother’s leg.

In October, Sylvia announced she was pregnant with her second child, another boy.

She posted a photo to Instagram of her husband, Sky News anchor Peter Stefanovic, holding their son, and wrote: ‘When you find out you’re getting a best bud for life.

‘Oscar’s little brother due in April next year. We are so lucky.’

Sylvia and Peter welcomed Oscar in February this year. They tied the knot in the Kangaroo Valley back April 2017.