Westside star Antonia Prebble announces pregnancy

Kiwi actress Antonia Prebble has announced she's expecting a baby with Westside co-star Dan Musgrove.

The couple shared the news in a cover story for Woman's Day, where the 34-year-old is all smiles as she cradles her baby bump next to her fiancé. 

"So...a bit of news," she captioned a photo of the cover on Instagram.

"While this photo may seem to suggest that I needed a lie down because I ate too many pies, what's really going on is that I'm pregnant!

"Dan and I are thrilled and so excited to meet our wee babe."

Prebble, who rose to fame playing Loretta West in the iconic Kiwi television show Outrageous Fortune, told Woman's Day she was in her second trimester.

"Having children was something I'd always imagined would be part of my life, but until recently, it always felt like it was far off in the future," she said.

"Then suddenly, for both of us, it felt right. We were engaged, planning a future together and talking about starting a family. We were elated."

It will be the first baby for the couple, who got engaged last year.