A 72-year-old woman who has already spent $62,000 on fertility treatments in an effort to give birth is about to try again.

If successful with what will be her seventh course of in vitro fertilization, Jenny Brown will become the world's oldest mother.

The world's oldest mother was Maria del Carmen Bousada Lara, who gave birth to twin boys seven days before her 67th birthday in 2006. Bousada died Saturday of breast cancer, sparking fears that the disease was triggered by the hormones she used to facilitate her pregnancy.

"Any mother can die at any age,” said Brown, a former academic who has never had a long-term partner. “I hope to live to 100, but I'll ask one of my younger friends to be a guardian in case.”

Brown, who lives in London, said she had always wanted a child but spent her younger years devoted to academics, achieving degrees in medical sciences and zoology.

"I'd always had it in the back of my mind that when the time was right I'd like to have a child,' she said. "But my studies meant that children kept getting delayed. The right time finally came in my early 50s and since then I've been attempting — and failing — with IVF."

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