[Firewire]

X Factor judge Dannii Minogue is expecting her first child, reports have claimed.

According to the Sydney Morning Herald, Minogue was spotted with a baby bump earlier this week as she left a private maternity hospital in Melbourne with boyfriend Kris Smith.

Meanwhile, sources have told The Mirror that the 38-year-old is "over the moon" and has shared her news with family members.

One insider said: "Dannii thought the time was right to start trying for a baby. The whole family are delighted for her - especially [sister] Kylie, who is so excited about having a little niece or nephew.

"Dannii really doesn't know what this means in terms of X Factor. The show is the last thing on her mind right now."

It is thought that the star is due to give birth in the summer, when the ITV1 show's audition rounds usually take place.

A source explained: "At present, she's not even thinking that far ahead. She is over the moon at being pregnant and can't stop smiling."

Minogue started dating Smith in 2008 after they met in Ibiza. She later described the former rugby player as "the one" and confirmed that she had "never been happier".

DS