Can medical treatment ever be 'guaranteed'? Apparently, yes it can. A certain fertility company has a 'money-back scheme' for couples undergoing infertility treatment with them. If they don't fall pregnant within 12 months, your expenditure is fully compensated.
The firm hopes the deal will tempt couples into buying the new ovulation detector, which costs 495 pounds, the device indicates the most fertile days in a woman's monthly cycle with 99 per cent accuracy.
And the promotion also comes with a promise of unlimited support and advice from the company's fertility experts.
Executives at Cambridge Temperature Concepts Ltd, a firm set up by Cambridge University PhD students in 2008, are offering the unusual refund deal until September 20.
Susanne Knoepfler, a member of the CTC marketing team, said that a recent trial of 50 UK couples with severe conception problems resulted in seven pregnancies.
"We are very proud of this as all the couples had been trying for some time and been through IVF and other treatments," the Daily Express quoted her as saying.
The DuoFertility ovulation detector is a thermometer the size of a 1-pound coin, in the form of a patch that can be worn under the arm.
It promises to alert a woman to the moment her temperature rises half a degree as a result of ovulation.
DuoFertility takes 20,000 readings at night during sleep, the ideal time to measure the body's base temperature, making it far more accurate than other existing methods.
A small wireless hand-held reader processes data from the patch to tell the wearer whether she has ovulated in the last two days and whether she is likely to in the next six days.
Dr Oriane Chausiaux, CTC's chief scientific officer, said that round-the-clock readings were an innovative way of detecting ovulation.
"Other ways of detecting ovulation require women to test a daily urine sample to identify their hormonal changes, or to wake up very early every morning and manually record their body temperature," she said.
"That gives only one data point for each day," she added.