Australian researchers have developed a test that will tell pregnant women if they are likely to suffer a miscarriage.
The test is 80 percent accurate and takes into account a range of factors such as bleeding, caesareans, miscarriages and the first ultrasound scan, the Herald Sun newspaper reports.
It was formulated by researchers from Sydney's Omni Gynaecological Care Centre and Sydney University.
Omni Gynecological Care Centre director George Condous told the Herald Sun the question most women asked him was what were their chances of miscarrying.
"At the moment I can't tell them," he said.
The first stage of trials involving 400 women was completed at the Nepean Hospital in western Sydney and the second stage is about to begin.
About one in four pregnancies end in miscarriage.
The new test would help doctors adjust their treatment of women who have a higher risk of miscarrying, Associate Professor George Condous said.
"If a woman was deemed to be a risk of a miscarriage, we could then see them more regularly for scanning and monitor their progress, rather than leave it six weeks for another scan," he said.
Women with high risk factors are already offered at similar test at Melbourne's Royal Women's Hospital.
The hospital's fetal management unit head, Ricardo Palma Dias, told the Herald Sun offering such a test to all pregnant women would benefit some, but would also be very expensive.
"It is a highly accurate prediction," he said.
"It is a cost-effectiveness issue and they would screen and spend a lot of money on normal people, because we shouldn't forget most pregnancies will be normal."
© Nine Digital Pty Ltd 2018