A new egg-screening technique has been used for the first time in the birth of a baby boy, it has been announced.
The 41-year-old mother of Oliver had endured 13 failed attempts at IVF before his birth.
The egg which produced Oliver was picked using array CGH (Comparative Genomic Hybridisation) by the CARE Fertility Group in Nottingham.
The technique involves selecting eggs which are chromosomally normal and have the best chance of producing a pregnancy.
Experts believe the technique could significantly improve a couples' chance of having successful fertility treatment.
Professor Simon Fishel, managing director of CARE Fertility Group, said: "Chromosomal abnormality plays a major part in the failure to establish a pregnancy.
"Full chromosome analysis may double the chance of success in couples who have a poor chance of conceiving or a history of failed treatments and miscarriage; and maximise the chance of pregnancy in all couples."
Tony Rutherford, chairman of the British Fertility Society, said the technology "certainly offers much promise".