You don't know if you're too late to start IVF at 40-something. But here's what you do know.

It’s the Tuesday Briefing - a deeper dive for those making informed decisions about fertility treatment at 40+.

Is there a real answer to “am I too late”? What can you actually find out this week, instead of waiting for a doctor’s verdict? And what changes once you stop confusing “unprepared” with “impossible”?

These are expensive decisions. Nothing is taken lightly here. That’s why paid subscribers get twice-monthly deep dives from someone who’s lived this, plus monthly live Q&As with specialists skilled in treating women over 40.

This month, we’re talking with Victoria, from All About Embryology about what women over 40 should know about their eggs and what can be done in the lab to support more fragile eggs to fertilise.

Join us Thursday 27th August, 7pm BST. A link will be shared to paid subscribers before the call.

Upgrade to get answers, not reassurance.

If you don’t know where to get started, the “Should I Start IVF at 40?” tool walks through it in about three minutes. And if you’re past the question and into deciding about treatment, that’s what the Briefing Room Programme is for.

Ten calls in total, including six to build your bespoke treatment strategy before you spend a penny on treatment, plus four independent expert sessions - an embryologist, a fertility doctor, a nutritionist, a therapist - selected for their expertise in treating women over 40.

Applications are now open for the Autumn cohort.

Built for solo women over 40 who don’t have time or money to waste.

You’re 40-something. And you’re scrolling clinic websites at midnight, reading Reddit threads, asking: am I too late?

Every woman I’ve spoken to has asked this exact question. It might arrive as a panic. It sits under every other decision: Can I afford this? Do I have time? Is this even worth trying?"

But here’s what I’ve learned from consulting doctors from the UK to India and doing two IVF cycles at European clinics: the question itself is the problem.

“Am I too late?” sounds like it has a yes or no answer. It doesn’t. What you actually need to know is completely different - and it’s entirely within your control.

The UK regulator the Human Fertilisation and Embryology Authority (HFEA) publishes live birth rates by age. For women aged 43-44 using their own eggs, the birth rate per embryo transferred is 8% in 2024. For women aged 18-34, it’s 38%.

Those numbers look like answers. They’re not - they’re population averages.

Your doctor cannot tell you where you sit in that average. Your egg quality, your health, your response to stimulation - these are individual. Your doctor can estimate based on markers. They cannot predict your outcome.

When a doctor says “at your age, we should try donor eggs,” they’re not reading your biology. They’re reading a national chart.

And Reddit makes this worse. Women ask: “Is IVF worth it at 43?” Someone replies: “The success rate is only 8% so don’t waste your money.” That’s not wisdom. That’s misreading data without context.

Context matters. Your situation is specific. Anti-Müllerian Hormone (AMH) tells you about egg quantity, not quality. A 29-year-old with low AMH can still do well, while a 42-year-old with normal AMH may still face quality limits due to age - but that’s different from saying 42-year-olds can’t succeed.

Before you panic about age, understand what your doctor can know about your individual case.

Ask your doctor for three numbers:

• Your AMH level (marker of ovarian reserve — how many eggs you have left)

• Your antral follicle count (the follicles visible on ultrasound this month)

• Your FSH level (how hard your pituitary is working to stimulate your ovaries)

These numbers matter because they help your doctor estimate how many cycles it might take with your own eggs, given your specific biology. AMH predicts how you might respond to stimulation more than it predicts your chance of live birth per embryo transferred.

But there’s something else your doctor won’t tell you: most women over 40 need multiple cycles. Not one. Multiple.

The Reddit threads are full of this: “I thought one would work,” “I wasn’t prepared for a second cycle,” “I’ve already spent £18,000 and I’m not sure I can do another.”

That’s not a failure. That’s realistic planning.

Here’s what might change things: the 90-day egg maturation cycle.

Although women are born with all their eggs, their maturation occurs over approximately 90 days before ovulation. During the final stages of this process, the egg builds its nutrient stores and develops its mitochondrial network - the energy systems that determine whether an egg can fertilise and divide.

This is important because it means you have a window. Not to change your age. But to change how your eggs are prepared when they’re retrieved.

The practical window for egg quality improvement is about 2 to 4 months before ovulation, which lines up with the roughly 90-day maturation cycle of developing follicles. Once a follicle is on its way toward ovulation, you can’t rewrite its history - but you can influence the environment it’s developing in.

Most fertility clinics don’t teach this. Most doctors don’t mention it. But a growing number of fertility nutritionists and supportive doctors use it as a framework.

(Try this free fertility checklist from Root and Leaf Nutrition. Solo Fertility 40s does not have any commercial arrangements with any service providers.)

The next section shows you exactly what to do during those 90 days, how to talk to your doctor about egg quality (not just age), and what the real decision points actually are - not the ones the internet tells you to panic about.