Couples who want to conceive using IVF will be able to calculate their chances of success with a new phone app.
With a 99% accuracy rate for predictions, the test claims to be the most reliable way for infertile women to see whether they will fall pregnant.
The website www.ivfpredict.com already has the test available online, and it is now being converted into a smartphone app. Users simply key in their age, pregnancy history, and egg donor details to work out their chances of conception based on 144,000 pre-programmed IVF cycle results.
Research into the test was undertaken by experts at Bristol and Glasgow universities. Their findings are published in the Public Library of Science.
Professor Scott Nelson from the University of Glasgow, said: 'Up until now estimates of success have not been reliable.
'IVF is successful in about a third of women under 35 but only up to 10% over 40.'
The researchers hope the NHS and other healthcare funders will use the test in IVF clinics.
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