Kristina Rihanoff tells her CBB housemates she is pregnant
Celebrity Big Brother contestant Kristina Rihanoff has announced to her fellow housemates she is almost three months pregnant.
The Strictly Come Dancing Star was met with cheers when she broke the news at around 8pm.
The 38-year-old said: "There was something (that) happened in my life before I came into the house over Christmas, and obviously I thought it's very private news, you know but because we are living as one family now and everybody is sort of supporting one another now, it happened to be that I found that my boyfriend and I are going to have a little one."
The Russian dancer, who faces eviction on Friday, became tearful after being congratulated, hugged and kissed by her housemates.
She added: "Well I found over Christmas. Thank you guys, I just didn't know how to break it, what to say, when to say, it played on my mind and I wanted everyone to hear."
Former Hollyoaks actress and fellow housemate Stephanie Davis asked how far along she was, to which Rihanoff replied she was "almost three months".
PR man Jonathan Cheban said: "That's so exciting,"
Rihanoff met her partner, rugby star Ben Cohen, when they were partnered on the BBC One show last year. Cohen split from his wife of 10 years Abby following the show.
A spokesman for the mother-to-be said: "Kristina and Ben were surprised and delighted to find out that she was pregnant shortly before she entered the Big Brother house. Kristina is well and looking forward to being a mum."
When Rihanoff entered the house she said she would "try to be the mummy of house" as she admitted she laughed at her "Siberian Siren" nickname.
She said: "I will try to be the mum of the house and hopefully I'll enjoy the experience."
The shock announcement will be broadcast during the live eviction at 9pm on Friday on Channel 5.
Rihanoff is believed to be the first housemate to enter the house while pregnant.
A Channel 5 spokesman said there would be procedures put in place for her care.
In 2005, Big Brother housemate Makosi Musambasi claimed she was "90 to 100% sure" she was pregnant after an alleged romp in the hot tub with Anthony Hutton - but she later denied they had even had sex.
Another housemate to deliver shock news in the history of the show was Jade Goody who withdrew from the Indian version of Big Brother after receiving a cervical cancer diagnosis in 2008.
The late reality TV star, who died from her illness the next year, was told the news during a phone call in the diary room before telling her fellow housemates.
When Rihanoff leaves the house, be it during Friday's eviction or later in the series, she will be able to talk babies with CBB presenter Emma Willis, who is also pregnant with her third child with husband and Busted star Matt Willis due in early May.
Cohen is not Rihanoff's first celebrity boyfriend, nor her first Strictly Come Dancing partner who has become more than friends.
In her autobiography Dancing Out Of Darkness: My Story, the 5ft 3in blonde, spoke about a romance with fellow Strictly dancer Vincent Simone while his girlfriend was four-months pregnant - but she claims she believed he was single.
After partnering boxer Joe Calzaghe in 2009 the pair became an item for four years.
Calzaghe's ex-girlfriend Jo-Emma Larvin claimed he dumped her when he found out he had been partnered with Rihanoff.