When fertility doesn’t progress as expected, the explanation is often over-simplified.
You were born with all your eggs.
Egg quality can’t really be changed.
Sperm looks fine.
IVF will take care of the rest.
For many women, these explanations don’t match what they experience.
They engage fully with the process presented to them — and yet the outcomes often fail to align with the effort involved.
That disconnect is not accidental.
Fertility is not one thing
Fertility is not decided by a single test, a single number, or a single cycle.
It reflects how three elements work together:
- the egg
- the sperm
- the conditions present when conception happens
A reductionist explanation does not do justice to the complexity of fertility, or to what you are hoping for your family.
When one of these is oversimplified, the explanation stops making sense.
Egg quality is not frozen in time
Women are born with all the eggs they will ever have.
That part is true.
What is often missed is that eggs do not remain unchanged until ovulation.
Before an egg is released, it goes through a long process of growth and maturation. During that time, the egg is still completing maturation, including the cellular organisation needed for its chromosomes to separate correctly.
This is why egg quality is not simply “good” or “bad”.
It is not fixed at birth.
And it is not decided in a single cycle.
It also cannot be measured with a blood test.
Egg quality is usually inferred later, based on outcomes — not directly observed in advance in the way many people assume.
Age is part of the picture — not the whole one
Age matters in fertility.
No honest explanation avoids that.
As reproductive ageing progresses, the processes involved in egg maturation become more vulnerable, including mitochondrial energy production, oxidative balance and the cellular machinery responsible for chromosome separation.
But the egg is still developing within an active follicular environment before ovulation. The cells around it process glucose, fats and amino acids that are used during maturation.
Age is context, not a verdict.
It does not tell us how an egg is maturing right now.
It does not describe the conditions present when conception occurs.
Two people of the same age can have very different fertility experiences — not because age stopped mattering, but because it is only one influence in a larger system.
When age is treated as the explanation, it becomes a substitute for understanding.
Sperm is part of the picture
Sperm testing is often treated as a box to tick.
A test is done.
A result is labelled “normal”.
And the conversation moves on.
What “normal” means, though, is often much more limited than people realise.
The WHO reference ranges used in semen analysis are based on men whose partners conceived naturally within 12 months.
The lower reference limit is set at the fifth centile of that fertile group. In practical terms, a result just above that line can still be lower than around 95% of the values in the fertile reference group for that parameter.
So being within the reference range is not the same as having an average result. It means the result sits within the range seen in men who conceived naturally — including the lower end of that range.
A standard semen analysis also measures only selected characteristics, including sperm number, movement and shape. Those results are useful, but they do not provide a complete assessment of male fertility or every aspect of sperm function involved in fertilisation.
So a “normal” result can still sit near the lower end of the range seen in fertile men — and it tells us only part of what matters about sperm.
From genetic instructions to biological conditions
Egg and sperm carry the genetic instructions for early development.
But conception is not the finish line.
It is the starting point.
Once fertilisation occurs, cells begin dividing rapidly.
Those early divisions require energy and the raw materials needed to build and regulate new cells.
The wider biological environment around conception includes:
- nutrient availability
- inflammatory balance
- metabolic stability
- and the state of the maternal microbiome
The microbiome plays a quiet but important role here.
It contributes to nutrient processing and to metabolic, immune and inflammatory signalling.
This is why the mother’s nutritional and metabolic state before and around conception matters — as part of the biological environment in which early development is resourced.
The genetic instructions carried by egg and sperm can be sound.
Fertilisation can occur — and even good embryos can form — yet development may still struggle to continue.
Knowing that nutrition forms part of the biological environment is one thing. Making that visible on the plate every day is where the practical challenge begins.
What are you going to have for breakfast, lunch and dinner this week? The meals need to be planned, the ingredients bought and the food prepared. Knowing where to start can be the hardest part.
Over my 20 years of working with couples who are trying to conceive, I have found that learning skills around planning and prepping meals is crucial, and the benefits are endless…
- ✅ You don’t have to think about what’s for dinner tonight — it was planned last weekend.
- ✅ All your shopping for the week can be done at one time, saving you hours.
- ✅ By prepping everything in one go, more time is saved.
- ✅ By having meals that lend themselves to either being frozen for future use or being good for lunch the next day, less time is spent in the kitchen.
- ✅ You save money too, as there is less waste, spoiled food and fewer lunches bought out.
- ✅ And of course, because you are eating to a healthy meal plan, your fertility is supported.
What AMH can — and cannot — tell us
AMH is often treated as a stand-in for egg quality.
Decisions are made.
Timelines are set.
Urgency is created.
But egg quality cannot be measured with a blood test.
AMH reflects signalling related to follicle activity.
It does not measure how eggs are maturing.
And it does not tell us how well an egg can support a pregnancy outcome.
In practice, conclusions about egg quality are often drawn after the fact — based on outcomes rather than direct measurement.
This is why AMH can feel so definitive, and yet explain so little.
When a single marker is used to predict the outcome of a complex process, it often promises more certainty than biology can give.
Important parts of the picture are not missing.
They were never being measured in the first place.
When you’re told “nothing can be done”
When fertility is framed as fixed, the body is quietly taken out of the picture.
Eggs are reduced to age.
Sperm is reduced to a tick box.
The environment in which conception happens is barely considered at all.
What’s left is a narrow story:
either accept it,
or move straight to treatment.
What’s missing is an understanding of fertility as a living system — one where different parts are constantly interacting.
Eggs do not exist in isolation.
Sperm does not act alone.
Conception does not happen in a vacuum.
Each influences the others.
Each responds to the conditions present at the time.
When fertility is seen this way, past experiences often begin to make more sense.
Not because there was one thing to fix.
Not because effort was lacking.
But because outcomes emerge from how a whole system is functioning in that moment.
That doesn’t create pressure.
It restores perspective.
Fertility outcomes are not fixed.
They are not only about women.
And they are not decided by one test.
They reflect how cells develop, interact, and are supported at the moment something new begins.
Progress toward a pregnancy depends on how egg, sperm, and conditions work together in a specific situation — not on general explanations.
The months before conception matter
The decision to grow your family is not taken lightly, there is plenty to consider and plenty of preparation necessary.
That preparation starts with the egg and sperm. Egg and sperm development both begin before conception, which makes the months leading up to pregnancy part of your fertility journey.
Nutrition contributes to that environment through metabolic stability and nutrient availability during egg maturation, sperm production, fertilization and implantation. The Mediterranean diet delivers that targeted nutritional support. Closer adherence to the Mediterranean diet has been linked with 44% lower odds of difficulty conceiving. Having a professionally produced, structured plan can relieve the decision fatigue and keep you on track as you prepare to welcome your new addition.
The Now Baby Mediterranean Fertility Nutrition Protocol is designed around the 90 days before conception, giving you a practical framework for bringing that way of eating into your fertility preparation.
