The chance of natural conception declines markedly after age 45. However, different treatment options may be considered depending on menstrual status, ovarian reserve, overall health and the source of the eggs used.
Egg numbers and the probability of chromosomal normality decline.
Blood-pressure and metabolic risks also require assessment.
A donation decision requires both personal and medical assessment.
Can you get pregnant after age 45? Yes, pregnancy can occur at age 45 and beyond, but the chance of natural conception and pregnancy using a person’s own current eggs is markedly reduced. Pregnancy planning at this age should consider not only whether eggs are present, but also the likelihood of chromosomal abnormalities, miscarriage risk, overall health and maternal risks during pregnancy.
Two people aged 45 can have very different clinical situations. One may have regular periods and previous pregnancies, while another may be in perimenopause, have reduced ovarian reserve or have chronic medical conditions. Average percentages found online therefore do not predict an individual outcome. A detailed assessment should be arranged without unnecessary delay.
Why does age affect fertility?
The ovaries contain a finite number of eggs from before birth. With age, egg numbers decline and the probability of chromosomal abnormalities in remaining eggs increases. Fertility begins to decline during the 30s, the decline becomes faster after age 35 and is more pronounced in the 40s.
Around age 45, the chance of natural conception is very low. Even when pregnancy occurs, miscarriage risk is higher than at younger ages, largely because chromosomal abnormalities in embryos become more common. A normal-looking AMH result does not mean egg quality is equivalent to that of a younger person.
Do regular periods at age 45 mean fertility is still good?
Regular periods may suggest that ovulation is still occurring, but they do not provide information about the chromosomal health of eggs. Regular cycles do not guarantee a high ovarian reserve or a high chance of pregnancy. Conversely, irregular periods do not always mean menopause.
Assessment may include AMH, early-cycle antral follicle count, FSH and oestradiol. These tests primarily help estimate how the ovaries may respond to treatment. Age is a stronger predictor of live-birth probability.
Can natural conception be tried at age 45?
Waiting for many months for pregnancy to occur naturally can result in valuable time being lost at this age. ACOG recommends that people over age 40 seek fertility evaluation when planning pregnancy without waiting through the usual interval. Tubal factors, the uterus, ovulation and semen parameters should be assessed together.
Whether trying naturally is reasonable should be discussed according to the individual situation. The low probability and increased miscarriage risk should be explained clearly. Advice simply to “try for another year” is not always appropriate at advanced reproductive age.
Can IVF be performed with your own eggs at age 45?
IVF treatment can technically be planned if there are follicles capable of developing in the ovaries. However, the number of eggs collected may be low, and the probability that resulting embryos are chromosomally normal decreases with age. Some cycles may end without an egg being obtained, without fertilisation or without an embryo suitable for transfer.
For this reason, when IVF with a person’s own eggs is considered, counselling should cover the expected number of eggs, the possibility of cycle cancellation, the potential need for more than one treatment cycle and a realistic estimate of live-birth probability. Very low AMH does not automatically rule out treatment, but expectations must be set carefully.
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Treatment decisions are shaped not by a single laboratory result, but by your medical history, expectations and the full context of your treatment journey.
Is PGT-A a solution at advanced maternal age?
PGT-A assesses cells biopsied from blastocysts for chromosome number. It may help identify embryos with an appropriate chromosome complement, but it does not create a normal embryo and does not change egg quality. In people who produce very few embryos, there may be no embryo that reaches the biopsy stage.
The potential advantages, limitations, mosaic results and cost per embryo should be discussed. PGT-A does not necessarily increase the live-birth rate for every patient. The decision should take embryo number and individual history into account.
What option can donor eggs offer after age 45?
With egg donation the genetic material contributed by the egg comes from a young, screened donor. The age-related factor affecting the egg therefore largely reflects the donor’s age. Donor eggs may increase the chance of pregnancy for people whose expected probability with their own eggs is very low.
However, the age and health of the person carrying the pregnancy remain important. High blood pressure, gestational diabetes, pre-eclampsia, Caesarean delivery and other obstetric risks can increase with maternal age. Using donor eggs does not remove these maternal health risks.
Which checks are needed before pregnancy over age 45?
In addition to fertility assessment, the safety of pregnancy should be evaluated. Blood pressure, diabetes risk, cardiovascular health, kidney and liver function, weight, current medications and age-appropriate screening are reviewed. Uterine ultrasound assesses the endometrium and any fibroids.
- Cardiology or internal-medicine assessment may be required.
- Medications that can and cannot be used during pregnancy are reviewed.
- Breast and cervical screening should be up to date.
- A history of hypertension, diabetes or preterm birth in previous pregnancies is reviewed.
- Single embryo transfer and avoidance of multiple pregnancy should be discussed.
Which pregnancy risks increase after age 45?
At advanced maternal age, the risks of gestational hypertension, pre-eclampsia, gestational diabetes, placental complications, Caesarean delivery and preterm birth may increase. When a person’s own eggs are used, chromosome abnormalities and miscarriage risk are also age-related.
An increased risk does not mean that every person will experience complications. Healthy people who have been appropriately assessed may have uncomplicated pregnancies. Rather than ignoring the risks, appropriate maternal–fetal medicine follow-up and planning for the place of delivery should be considered.
How do treatment with your own eggs, donor eggs and tandem IVF compare?
| Option | Key feature | Points to discuss |
|---|---|---|
| IVF with your own eggs | Genetic connection is retained; the likelihood of obtaining embryos is limited by age and ovarian reserve. | Low response, cycle cancellation and the likelihood of chromosomally abnormal embryos. |
| Egg Donation | The egg comes from a young donor; the recipient carries the pregnancy. | Donor screening, genetic connection and pregnancy risks. |
| Tandem IVF | The patient’s own eggs and donor eggs are considered within the same treatment plan. | Cost, embryo source and transfer decisions. |
No single option is “the right one” for everyone. Personal values, time, budget, medical probability and emotional readiness should all be considered.
How quickly should someone planning pregnancy at age 45 act?
Rather than repeating AMH tests for months, a comprehensive evaluation should be undertaken. If there is a male partner, semen analysis can be arranged at the same time. Previous treatment reports, pregnancies and miscarriages are reviewed. If treatment with the person’s own eggs is being considered, the limited time window should be explained clearly.
At the same time, decisions should not be made under pressure or without adequate information. Medical, psychological and ethical counselling can be helpful when considering an important option such as donation.
A favourable AMH level at age 45 does not make egg quality equivalent to that of a younger person. AMH is more closely related to expected egg numbers, whereas age is more strongly related to embryo chromosome status and pregnancy outcome.
Frequently Asked Questions
Can you get pregnant naturally at age 45?
Pregnancy is possible, but the chance of natural conception is very low and miscarriage risk is high. Prompt fertility assessment is advisable.
Can IVF be performed with your own eggs at age 45?
Treatment may be possible if follicles develop, but the likelihood of obtaining an embryo suitable for transfer and chromosomally normal is low.
Does a high AMH at age 45 mean the chance is good?
AMH mainly helps estimate egg quantity. Age has a stronger influence on egg quality and chromosomal normality.
Do donor eggs remove the effect of age?
The egg-related age factor reflects the donor’s age, but health risks associated with advanced maternal age remain for the person carrying the pregnancy.
Should PGT-A be performed over age 45?
PGT-A may be discussed for some patients, but it is not mandatory for everyone and it does not create a normal embryo.
Is cardiology assessment needed before pregnancy at age 45?
Depending on individual health history, assessment by cardiology, internal medicine and maternal–fetal medicine may be appropriate.
Sources and medical review note
This article is for general information and has been prepared with reference to current guidance from the institutional sources listed below. It does not replace an individual diagnosis or treatment plan.