IVF over 40? What are Your Real Chances for Success

If you are reading this in your forties and wondering whether IVF is still a realistic option for you, you are not alone. In fact, the number of women over 40 pursuing IVF has increased significantly in recent years, and while the journey does come with its own set of challenges, it is absolutely not a closed door. For me, having IVF/ICSI over 40 worked, but it isn't necessarily straightforward. Understanding the real statistics, and what genuinely influences your chances,  is the first step to making a truly informed decision.

What Do the Success Rates Actually Say?

Let us start with the numbers, because they matter, but they don't tell the whole story.

According to the Human Fertilisation and Embryology Authority (HFEA), the live birth rate per embryo transferred for women using their own eggs is approximately 5–8% for women aged 43–44, and lower still beyond that. For women aged 40–42, the rate sits around 15–20%. These figures can feel disheartening at first glance, but it is important to understand what they mean — and what they do not.

These are averages. They include women with a wide range of diagnoses, egg reserves, and clinic quality. They do not account for how many cycles a woman has had, her individual AMH levels, her response to stimulation, or the quality of the embryology lab supporting her.

Why Does Age Affect IVF Success?

The primary factor is egg quality. As women age, the eggs produced are more likely to carry chromosomal abnormalities — which is why many embryos either fail to implant or result in early miscarriage, rather than a healthy pregnancy. This is not a personal failing; it is simply biology.

Other factors that influence success over 40 include:

• Ovarian reserve — measured through AMH (Anti-Müllerian Hormone) and antral follicle count (AFC). Lower reserve means fewer eggs retrieved, which means fewer chances for a viable embryo.
• Uterine health — the good news here is that the uterus tends to age better than the ovaries, meaning if you are using donor eggs, your body can still carry a pregnancy very successfully.
• Embryo quality — not all fertilised eggs become healthy blastocysts. The lab conditions, the stimulation protocol, and the skill of the embryology team all play a role.

Should You Consider Donor Eggs?

This is a deeply personal decision, and one that many women over 40 find themselves weighing carefully. Using donor eggs from a younger woman significantly improves success rates - HFEA data shows live birth rates of around 25–30% per transfer using donor eggs, regardless of the recipient's age.

For some women, donor eggs feel like the natural next step. For others, it takes time to process. There is no right or wrong answer here, and any decision you make deserves to be made from a place of good information and emotional support - not pressure.

What Can You Actually Do to Improve Your Chances?

While you cannot change your age, there are meaningful steps you can take to optimise your cycle:

• Get thorough pre-treatment testing - a full hormone panel, uterine cavity assessment (such as a hysteroscopy), and a sperm analysis are all essential starting points.
• •Choose your clinic carefully - not all clinics have the same expertise with older patients. Ask specifically about their experience treating women in your age group. For a full guide on how to do this, click here.
• Ask about PGT-A testing - preimplantation genetic testing can identify chromosomally normal embryos before transfer, potentially reducing miscarriage risk and improving success rates per transfer.
• Look after your overall health - sleep, nutrition, stress management, and reducing alcohol and smoking can all support your overall reproductive health.

The Emotional Reality of IVF Over 40

It would be dishonest not to acknowledge the emotional weight of this journey when you are older. There can be a sense of urgency, a fear that time is running out, and grief for a version of the journey you imagined having earlier. All of that is valid.

What matters is that you feel supported, well-informed, and genuinely heard by your medical team. If your clinic makes you feel like a statistic rather than a person, find a different clinic. You deserve care that treats you as an individual with a story, not just a number on a chart.

And if this can inspire you, I had ICSI aged 40 with a donor egg and now have a beautiful healthy daughter!

The Bottom Line

IVF over 40 is not a guaranteed path, but for many women it is a worthwhile one. The most important thing is to go in with clear, honest information - not the most optimistic pitch from a sales-driven clinic, and not the most doom-laden version of the statistics either. The truth sits somewhere in between, and with the right support, you are more than capable of navigating it.