A team at Cambridge University has developed a new monitor that should benefit couples who are considering infertility treatment.
The DuoFertility monitor works by measuring the half-degree change in a woman's body basal temperature (BBT), which is widely regarded as the most accurate indicator of ovulation.
Dr David Naumann, co-founder of Cambridge Temperature Concepts (CTC) and a medic at Frimley Park Hospital, explained: "Charting body basal temperature is often the first step that we recommend to our patients to promote conception as it not only helps them to identify the best time to try, but also it confirms that ovulation has occurred."
The monitor takes the form of a small stick-on patch which can be worn under the arm, continuously collecting data on the woman's temperature and sending it to a digital handheld receiver.
CTC chief executive officer Dr Shamus Husheer revealed: "The temperature data it produces has a precision greater than most laboratory research equipment, whilst being simple and convenient to use."
Researchers are now recruiting couples to take part in a trial of the monitor before hopefully making it commercially available.
Estimates suggest that one in seven European couples experiences problems conceiving.