For women aged 40 to 42, the success rate of six cycles was less than half that. (While it is worth noting that the data lumps together all women under 40, the median age of the participants was 35).

Our eggs age as we age: What women should know about fertility By Arti Patel Global News Posted November 17, 2019 9:00 am Updated November 17, 2019 1:58 pm ...

Ovulation testing kits are fairly accurate for women with a regular 28- to 30-day menstrual cycle but for women with irregular periods, they might not be as accurate, Dr Kalra adds.

Second-generation immigrant women have even lower fertility rates than the Canadian average, at 1.4 children per woman, compared to 1.8 children per first-generation immigrant woman.

Female fertility is often said to "fall off a cliff" after 35, but there is growing recognition that this idea overlooks much of what we now know about how and when women become pregnant.