Age & Timeline Concerns

Is mid-forties too late to conceive naturally or with my own eggs?

Natural conception in the mid-forties is possible but becomes increasingly uncommon, primarily because both egg quantity and quality decline significantly by this stage, and the proportion of chromosomally normal eggs drops considerably compared to earlier reproductive years. It's not accurate to say it's impossible, but the odds each cycle are meaningfully lower than at younger ages.

For those considering IVF with their own eggs at this stage, success rates using own eggs also decline significantly with age, largely for the same reason, chromosomal normality rather than the treatment itself. This is genuinely individual though, and testing your own ovarian reserve markers gives a far more accurate personal picture than population averages alone, since there's real variation between individuals at any given age.

How does age affect cellular egg quality compared to chromosomal abnormalities?

These two things are closely linked but not identical. Chromosomal abnormalities in eggs increase with age primarily because the process of chromosome division during maturation becomes more error-prone over time, partly linked to declining mitochondrial function and reduced cellular energy available to complete that division accurately.

So cellular quality, meaning mitochondrial health, oxidative stress levels and overall cellular function, is one of the underlying mechanisms contributing to age-related chromosomal risk, rather than a separate issue. This is part of why supporting cellular and mitochondrial health is relevant to egg quality conversations, even though it can't fully offset the age-related increase in chromosomal risk, which remains the dominant factor.