Pregnancy at 43 and 44 after failed IVF — what the HFEA data actually shows

My first IVF cycle was in Spain at 43. Five mature eggs. Three embryos. PGT-A testing said all three were aneuploid. And then, in the same conversation, came the pivot I hadn't seen coming.

"Donor eggs is the best option for you now."

I had gone into that cycle knowing the odds weren't on my side. I was 43, with low AMH, and I had spent years waiting for a partner who never arrived. But the same doctor had looked at my results at the start of the cycle and called for optimism. Being told, weeks later, that donor eggs were now the best option didn't feel like medicine. It felt like a door closing.

When a cycle fails at 43 or 44, something happens that doesn't get talked about enough. The clinic moves quickly. The conversation shifts — sometimes in the same consultation, sometimes at the follow-up — toward donor eggs. The recommendation can feel absolute, delivered with the kind of confidence that makes you question whether asking for more time is naive.

Before that decision, it is worth looking at what the data actually shows. Not the figure your clinic quotes. The published, publicly available HFEA data.

What the HFEA publishes, and what it shows

The Human Fertilisation and Embryology Authority publishes annual data on IVF outcomes in the UK, broken down by age. It is the largest single dataset of its kind in Europe — covering tens of thousands of treatment cycles each year, at every registered clinic.

For women aged 43–44 using their own eggs, the live birth rate per IVF cycle is in the region of 3–5%. The figure varies slightly year to year and between age 43 and 44, but the range is consistent.

The gap is real, and it deserves a direct look. A 3–5% success rate per cycle means that, on average, it takes many attempts before a live birth. It also means that some women at 43 and 44 do conceive using their own eggs — the rate is not zero, and the HFEA data confirms this each year.

The HFEA data is publicly accessible at hfea.gov.uk. It is worth reading it yourself rather than relying on a clinic's selective citation of it.

What a single failed cycle does — and doesn't — tell you

A failed IVF cycle is not proof that you cannot conceive with your own eggs. It is evidence that this particular protocol, at this particular clinic, in this particular cycle, did not result in a pregnancy. Those are different things.

What a failed cycle tells you:

• How your body responded to the stimulation protocol used
• How many eggs were retrieved and their maturity
• Whether fertilisation occurred and to what extent
• The embryo quality at the point of transfer or freeze

What a failed cycle does not tell you:

• Whether a different protocol would have produced a different result
• Whether a different clinic's approach would have changed the outcome
• Whether more time on a targeted supplement protocol would have shifted egg quality
• Whether the failure was a one-off or part of a consistent pattern

Clinics are not always well-placed to distinguish between these. A clinic that recommended a protocol that didn't work is not a neutral assessor of why it didn't work — or what should happen next.

The donor egg recommendation — what it's based on

Donor egg IVF has significantly higher success rates than own-egg IVF at 43 and 44. The HFEA data shows live birth rates of around 25–30% per cycle for donor egg IVF, regardless of the recipient's age. For many women, it is the path that leads to their family — and it is a good one.

What the recommendation to move to donor eggs is not always based on is a thorough assessment of your individual picture. Clinics monitor their own success rates — those rates are published by the HFEA and influence how clinics are perceived. A woman with low AMH in her mid-forties can, bluntly, represent a statistical risk to a clinic's performance data. The recommendation to move to donor eggs is sometimes genuinely in a patient's clinical interest. Sometimes it is also a business decision. Knowing which you are facing is part of what makes navigating this process so difficult.

This is not a reason to reject donor eggs. It is a reason to understand what the recommendation is based on — specifically, with your own results — before you make one of the most significant decisions of this process.

Questions worth asking your clinic:

• What specifically in my results leads to this recommendation?
• Is this based on age alone, or on my response to stimulation?
• Would a different protocol be worth trying before I make this decision?
• What would you expect from another cycle with my own eggs?

If the answers are vague or if the question about a different protocol is dismissed, a second opinion from a different clinic is worth considering. The HFEA's Choose a Clinic tool allows you to compare success rates by age group and treatment type across every registered UK clinic.

The women who do conceive at 43 and 44

The HFEA data tracks outcomes, not what preceded them. What it shows is that pregnancies at 43 and 44 using own eggs do happen — not frequently, but consistently. The data includes those outcomes every year.

What the data cannot show is the variation within that group. The women who conceived at this age were not a uniform cohort. Some will have had straightforward responses to stimulation. Some will have gone through multiple failed cycles before a successful one. Some will have changed clinics, changed protocols, or given their bodies more time between attempts. The data captures the result, not the path.

The 3–5% figure is an average — across women who cycled once, women who cycled many times, women who had done significant preparation and women who hadn't. Where you sit within that range depends on factors specific to you, not just your age.

A clinic cannot tell you with certainty where you sit within that distribution. What they can give you is an informed view — if they are willing to engage seriously with your individual case rather than applying a broad age-based policy.

The decision after a failed cycle

A failed IVF cycle at 43 or 44 typically leads to one of three paths: cycle again with own eggs, move to donor eggs, or take time before deciding. None of these is the obviously correct choice. They depend on your results, your clinic's assessment, what you can afford, and what you can manage emotionally.

What the data suggests — though it cannot direct individual decisions — is that the 3–5% rate per cycle means that cumulative probability across multiple attempts is higher than any single attempt suggests. Whether additional cycles are the right path for you specifically is a clinical question that requires a proper assessment, not a general policy based on age.

The decision also involves more than statistics. Donor egg IVF is a different kind of commitment — not medically harder, but emotionally different. Some women are ready for that immediately. Some need more time with their own eggs first. Both responses are legitimate, and neither requires justification to a clinic.