Getting Pregnant After 40: Real Chances, Risks and Your Options

More women than ever are planning pregnancy at 40 and beyond — and many succeed. But fertility at this age follows different rules, and the most important variable is time. Here is an honest, doctor-led look at what to expect and what helps.

Can you get pregnant naturally at 40?

Yes — natural pregnancy at 40 is absolutely possible, but the monthly chance is considerably lower than at 30. According to ACOG, fertility declines gradually from the early 30s and more steeply after 37, driven by falling egg numbers and rising chromosomal abnormality rates in the remaining eggs. By the mid-40s, natural conception becomes uncommon.

Why fertility changes after 40

• Egg quantity: the ovarian reserve shrinks steadily — reflected in lower AMH values.
• Egg quality: a higher share of eggs carry chromosomal errors, which lowers conception rates and raises miscarriage risk.
• Accompanying conditions: fibroids, endometriosis and thyroid issues become more common with age.

Quality is the bigger factor — and it is also why supporting egg quality and acting early matter so much.

Don't wait: the six-month rule (or sooner)

Standard advice is to seek evaluation after 12 months of trying — but that guidance is for younger women. Over 35, evaluation is advised after six months; at 40 and beyond, many specialists recommend a fertility assessment right away, before trying for long. At this age, months matter.

What the evaluation looks like

A focused work-up — AMH and hormone tests, an antral follicle count on ultrasound, tubal assessment and a semen analysis — usually gives a clear picture within one cycle. From there, your options and realistic chances can be discussed honestly, based on your ovarian reserve rather than averages.

IVF after 40: what it can and cannot do

IVF does not reverse egg ageing, but it maximises what your ovaries can offer: stimulating multiple eggs, selecting the best embryo, and — where appropriate — using genetic testing (PGT) to identify chromosomally normal embryos and reduce miscarriage risk. Success rates per cycle are lower than for younger patients, which is why planning may involve more than one cycle. Read more about age and IVF eligibility.

Pregnancy over 40: managing the risks

Pregnancies after 40 carry higher rates of gestational diabetes, hypertension and chromosomal conditions — which is why closer antenatal monitoring is standard. With good preparation and follow-up, the great majority of women over 40 have healthy pregnancies.

The takeaway

At 40+, the best predictor of success is not a statistic — it is how quickly you get an accurate picture of your own reserve and act on it. An early, honest evaluation costs nothing but time, and time is exactly what matters most.