Controversial egg timer test encouraging women to make 'high-stakes decisions' about their fertility

By Kellie Scott

Libby French always knew she wanted to have children, and at 27, she thought it wise to investigate her fertility.

"My mother went through menopause fairly early in life [and] I had acne and extremely painful periods, which I thought may indicate hormonal changes or imbalances," 29-year-old Libby from Bundaberg says.

Libby's GP recommended she take an AMH test, also known as the egg timer test.

It measures the level of anti-Müllerian hormone (AMH) in a woman's blood to estimate her ovarian reserve.

Libby's AMH came back as "low".

"My GP instructed [the result] was low for my age and that she wouldn't recommend putting off having a baby."

It sent Libby into a panic.