National study has revealed we know less on the subject than we realised
More than three-quarters of Irish adults have no idea what age their fertility will start to decline.
A new national study has also discovered that more than half of us think our fertility will start to decrease at 35 - that's five years after it actually does.
Health website myfertilitycheck.ie spoke to almost 1,000 people between the ages of 25 and 44, after it was revealed that Irish mothers are among the oldest in Europe.
Some 46 per cent of women say they're waiting for the right partner before they have a baby - while 37 per cent of men claim financial concerns are making them put off fatherhood.
The head of clinical services at My Fertility Check, Mary McAuliffe, says that trying as early as possible is the best route for hopeful parents.
Fertility in females begins to decline around the age of 30, with a massive decrease happening around the age of 35, while couples aged 40 and above will find it very difficult to get pregnant.