Jade Goody, the reality television celebrity who has been told that she has just months to live, is expected to earn close to £1 million from the television and magazine rights to her wedding being held this weekend.

Goody, who became a household name after appearing on Big Brother seven years ago, has said that she will use the money to safeguard the future of her children, Bobby, 5, and Freddie, 4, after her death.

It is understood that she will earn about £700,000 from OK! magazine, which has also secured the rights to pictures of her sons’ christening, and about £100,000 from Living TV. She is also in talks to take part in an interview with Piers Morgan, the former editor of the Daily Mirror, for ITV.

Goody, 27, was told by doctors last week that her cervical cancer is terminal, having spread to her liver, bowel and groin.

She plans to marry Jack Tweedy, 21, her boyfriend, on Sunday at Down Hall, a country house hotel in Essex close to her home in Ongar.

Television coverage of the wedding is expected to be aired on Living TV in mid-March, although no broadcast date has yet been confirmed.

The coverage has been negotiated as part of an existing deal with Living TV, thought to have been struck in June, before the disease was diagnosed last August. It will be the last episode in Goody’s continuing series about her illness.

“I’ve lived my whole adult life talking about my life,” Goody told the News of The World in an interview this week. “The only difference is that I’m talking about my death now. It’s OK. I’ve lived in front of the cameras. And maybe I’ll die in front of them.”

However, Max Clifford, her agent, said: “There will be no filming of Jade dying. It has not even been thought about, nor will it be.”

After the ceremony, Goody has no further media commitments.

Mr Clifford told The Times: “We are doing everything as simply and quickly as possible. This is a very special day. She’s never been married. It’s been her dream.

“In Jade’s case she wants to make as much money as possible, but also with people who will give her the best protection. We did the deal with OK! I’ve worked with them in the past. Lots of other organisations were after this, but many of them would have wanted her to do various things in time for a deadline. We wanted this to interfere in the smallest way possible.”

In the deals, Goody will earn close to the amount that was paid to David and Victoria Beckham, who received £1 million from OK! for rights to their wedding in 1999.

Mohamed Al Fayed, the owner of Harrods, has donated a £3,500 cream and ivory silk Mikado wedding gown as a gift. The dress was delivered on Tuesday to the Royal Marsden Hospital in Chelsea, West London, where she is being treated. She left the hospital yesterday afternoon, and will be spending time at home to prepare for the ceremony.

Goody became a household name after appearing in Big Brother. She had a difficult background - her father left home when she was 2, and he spent time in prison for drug offences and armed robbery. Her mother lost an arm in a motorcycle accident that killed her uncle.

Goody dropped out of school without any GCSEs and was working as a dental assistant when she was recruited for the reality show at the age of 21. In numerous magazine interviews that followed, she was candid and entertaining. Within four years she was a millionaire with a mansion in Essex, a commercially successful perfume and her own television shows.

In 2007 she ventured back to the Big Brother House for a celebrity version of the show, and into a row over alleged racist and bullying behaviour involving the Bollywood actress Shilpa Shetty. Goody has received thousands of messages of support. Gordon Brown yesterday expressed his sadness for the young mother’s plight during a press conference at Downing Street.

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