Dannii Minogue

Dannii Minogue is thankful she's not having twins.

The 38-year-old singer - who is pregnant with her first child to her former England rugby playing boyfriend Kris Smith - hasn't found out the sex of the baby but is relieved that medical checks have ruled out a multiple birth.

She said: "I don't know if we'll find out what we're having, we haven't had a chance to think. We know it's not twins - the doctor said this morning that there's only one in there and Kris and I both sighed with relief! I'm so tiny, I'm not big enough to fit twins in there - I wouldn't be able to stand up!"

Despite being happy with her pregnancy, Dannii admits she took "some convincing" about starting a family with Kris because her own parents did such a good job raising their children.

She told Britain's Glamour magazine: "I have two loving parents who formed a family around me and I have it in my mind that I want it to be like that. I would only do it if I was able to recreate that and up until now, I've never been in a relationship where I was 100 per cent confident and had those feelings.

"Kris was ready from the word go and couldn't wait to start a family. I've taken some convincing, but we've taken the leap together and it feels right. Kris is The One."

Although Dannii - who was previously married to actor Julian McMahon - is content in her relationship, she is terrified of walking down the aisle again because her divorce affected her so badly.

Dannii Minogue feared she was too old to get pregnant.

The 38-year-old Australian singer - who announced earlier this month she is expecting her first child - was stunned when doctors warned she would struggle to conceive, but tried to pretend she didn't care her biological clock was ticking down.

She told the Daily Mirror newspaper: "A while ago I went to my doctor for a check-up and he told me I'd got to the stage in my life where I'd have to make decisions about having children.

"I remember thinking, 'Oh God. I'm now that person who is getting too old to have kids.'

"I told him it wasn't an issue for me because I didn't have a man, there was no one on the horizon, and there probably never would be."

Things turned around for Dannii in 2008 when she met British ex-rugby player Kris Smith, 31, while holidaying in Ibiza.

The star - who currently splits her time between Australia and the UK - says Kris is a calming influence on her anxious nature, but admits they are currently having problems deciding where to raise their child, with the model applying for citizenship in her home country.

Pop star and talent show judge Dannii Minogue is expecting her first child, her spokesman said on Wednesday.

Minogue's London spokesman Simon Jones told Reuters in an emailed statement that the singer and her boyfriend Kris Smith, a former rugby player, were "delighted."

"Dannii and Kris are very excited and can't wait to start their family in 2010," Jones said in the statement.

A posting on Minogue's Twitter site also announced the singer's pregnancy on Wednesday.

"Woo hoo I'm gonna be a mummy! :-)," a tweet from the Australian singer said on her Twitter site twitter.com/danniiMinogue.

British newspapers had reported earlier that the 38-year-old was expecting a baby with Smith.

Pictures of a curvy Minogue out and about in Melbourne set off internet rumours at the weekend, but the star was reluctant to confirm her pregnancy before receiving results from a test.

"Dannii had her 12 week scan this week and was given the results today (Wednesday 13 January) with the all clear to make an announcement," Jones said in the statement.

(Reporting by Paul Casciato, editing by Steve Addison)