Thirty-eight is not too old to have a baby, but it sits at a point on the fertility curve where the odds of conceiving, carrying to term, and avoiding complications are meaningfully different from what they were even a few years earlier. Data from natural-fertility populations show that about 20 percent of women have ended their childbearing by age 38, while roughly 80 percent are still fertile at that age.1PubMed Central. Too old to have children? Lessons from natural fertility populations That is a reassuring majority, but the trajectory steepens fast after this point, and understanding what changes at 38 helps you make informed decisions about timing, testing, and medical support.
How Fertility Changes Around 38
The decline in female fertility is not a cliff at 35, despite the way that number gets thrown around. It is more like a slope that gradually steepens. In natural-fertility populations studied across different cultures and historical periods, the cumulative proportion of women who have stopped being able to conceive rises slowly from about 5 percent at age 25, to 7 percent at 30, to 12 percent at 35. At 38, about 20 percent have reached the end of their fertile years. Then the curve accelerates sharply: by 41, roughly half of women can no longer conceive, and by 45, that figure approaches 90 percent.1PubMed Central. Too old to have children? Lessons from natural fertility populations
What this means in practical terms is that at 38, you are still more likely than not to conceive naturally within a year of trying. But your monthly odds per cycle are lower than they were at 30, and the window before those odds drop substantially is narrower. If you have been trying for six months without success at this age, most reproductive endocrinologists will recommend starting a fertility workup rather than waiting the full year typically advised for younger women.
Why Egg Quality Matters More Than Egg Quantity
The conversation around age and fertility often centers on the number of eggs remaining, but the bigger issue at 38 is egg quality. As eggs age, they become more prone to chromosomal errors during cell division, a problem called aneuploidy. These errors mean an embryo ends up with the wrong number of chromosomes, which is the leading cause of failed implantation, early miscarriage, and certain genetic conditions. With increasing age, both the quantity and quality of eggs decline, with rising aneuploidy leading to lower IVF success rates and higher rates of pregnancy loss.2PubMed Central. Follicular metabolic dysfunction, oocyte aneuploidy and ovarian aging: a review The mechanisms behind this include disruption of the spindle apparatus that separates chromosomes during cell division, increased oxidative stress, and mitochondrial damage within the egg cell itself.3PubMed Central. Oocyte quality and aging
This is why two 38-year-olds can have very different fertility experiences. One may have eggs that are still dividing cleanly and conceive quickly; another may have a higher rate of chromosomal errors and face repeated early losses. Age is the strongest predictor of egg quality, but it is not the only factor. Individual variation is real, which is where testing comes in.
What AMH Testing Can and Cannot Tell You
If you are 38 and thinking about pregnancy, your doctor will likely check your anti-Müllerian hormone (AMH) level. AMH is a blood marker that reflects how many eggs you have left in reserve. A low AMH level (under about 1 ng/mL) is associated with a meaningfully lower chance of conceiving naturally. In a cohort study of over 3,000 women, those with low AMH had roughly a 23 percent lower chance of conception compared with women whose AMH was in the normal range.4Fertility and Sterility. Antimüllerian hormone levels are associated with time to pregnancy in a cohort study of 3,150 women In another study of women aged 30 to 42 trying to conceive naturally, those with AMH levels at or below 0.7 ng/mL had significantly lower day-specific chances of becoming pregnant, even after adjusting for age.5PubMed Central. Antimüllerian Hormone as a Predictor of Natural Fecundability in Women Aged 30–42 Years
The important caveat is that AMH tells you about egg quantity, not egg quality. A 38-year-old with a robust AMH level still faces age-related egg quality decline. And a woman with a somewhat low AMH can still conceive if the eggs she has remaining are chromosomally normal. AMH is most useful as a planning tool: if it is low and you want children, it signals that time is more limited and you might benefit from moving quickly or considering egg freezing or IVF sooner rather than later.
Miscarriage Risk at 38
Pregnancy loss is one of the less-discussed realities of conceiving later. A large register-based study in Denmark found that the risk of miscarriage was lowest in women aged 25 to 29 (about 10 percent) and climbed steadily with age, reaching over 50 percent in women 45 and older.6PubMed Central. Role of maternal age and pregnancy history in risk of miscarriage: prospective register based study At 38, the risk falls somewhere in the range of roughly 20 to 25 percent, depending on the study and the woman’s individual history. That is a real increase over the baseline, but it also means about three out of four recognized pregnancies at this age do continue.
Most of these losses are caused by chromosomal abnormalities in the embryo, the same aneuploidy issue discussed above. They are not caused by anything the mother did wrong, and they generally do not indicate a problem with future pregnancies. Still, the emotional toll of miscarriage is significant, and knowing the odds ahead of time can help you prepare mentally and decide whether early monitoring or genetic screening makes sense for you.
Complications to Watch For
Being 38 puts you in the “advanced maternal age” category that begins at 35, and this label carries some clinical relevance beyond fertility. The two complications most consistently linked to maternal age are gestational diabetes and preeclampsia (dangerously high blood pressure during pregnancy). A study from Central China found that advanced maternal age was associated with roughly 74 percent higher odds of preeclampsia and 76 percent higher odds of gestational diabetes compared with younger mothers, after adjusting for other factors.7BMJ Open Diabetes Research & Care. Effect of the interaction between advanced maternal age and pre-pregnancy BMI on pre-eclampsia and GDM in Central China
A meta-analysis pooling data from over 120 million participants found that gestational diabetes risk rises in a dose-response fashion with each year of maternal age. Compared with women aged 25 to 29, those aged 35 to 39 had about 3.5 times the odds of developing gestational diabetes, and those 40 and over had nearly five times the odds.8PubMed. Maternal age and the risk of gestational diabetes mellitus: A systematic review and meta-analysis of over 120 million participants At 38, you are firmly in the elevated-risk zone, though your absolute risk depends heavily on weight, family history, and ethnicity.
Population-level data on obstetric outcomes also show that the risk of high blood pressure in pregnancy stays relatively flat until around age 35, where there is a clear inflection point after which the risk rises rapidly.9PubMed Central. Absolute risks of obstetric outcomes risks by maternal age at first birth: a population-based cohort And preeclampsia at older ages carries an extra layer of concern because it more often leads to preterm delivery. In a study of Canadian delivery hospitalizations, older women who developed preeclampsia had a larger absolute risk of both spontaneous and medically induced preterm birth than younger women with the same diagnosis.10PubMed. Pregnancy complications and risk of preterm birth according to maternal age: A population-based study of delivery hospitalizations in Alberta
None of this means complications are inevitable. Most pregnancies at 38 are uncomplicated. But you will be monitored more closely than a 28-year-old, and the glucose tolerance test and blood pressure checks carry more weight at your age.
Genetic Screening and Prenatal Testing
The risk of chromosomal conditions like Down syndrome increases with maternal age. Advanced maternal age (35 and older) is a recognized risk factor, and genetic counseling is recommended for women in this group.11PubMed Central. Mothers of children with Down syndrome: a clinical and epidemiological study At 38, the odds of a Down syndrome pregnancy are roughly 1 in 175 to 1 in 200, depending on the source, which is higher than the approximately 1 in 1,000 odds for a 25-year-old but still means the vast majority of pregnancies are unaffected.
The good news is that prenatal screening has improved dramatically. Cell-free DNA testing (often called NIPT, for non-invasive prenatal testing) uses a simple blood draw from the mother to detect fetal chromosomal abnormalities with very high accuracy. A systematic review found that NIPT detects Down syndrome with about 99 percent sensitivity and near-perfect specificity.12PubMed Central. Accuracy of non-invasive prenatal testing using cell-free DNA for detection of Down, Edwards and Patau syndromes: a systematic review and meta-analysis Compared with traditional blood-based screening, cell-free DNA testing has a much higher positive predictive value, meaning far fewer false alarms: one large study found a positive predictive value of about 81 percent for cell-free DNA versus just 3 percent for standard screening.13PubMed. Cell-free DNA Analysis for Noninvasive Examination of Trisomy
A positive NIPT result is still a screening result, not a diagnosis. Confirmatory testing through amniocentesis or chorionic villus sampling is needed before making any decisions. But NIPT has dramatically reduced the number of women who undergo invasive testing unnecessarily, which is a meaningful benefit at an age where screening is strongly encouraged.
IVF Success Rates at 38
If you need or choose IVF, 38 is an age where success rates are still reasonable but noticeably lower than for younger women. A large UK-based analysis found that the predicted live birth rate per cycle for women who had 15 eggs retrieved was about 27 percent at ages 38 to 39, compared with 40 percent for women under 35.14Human Reproduction. Association between the number of eggs and live birth in IVF treatment: an analysis of 400 135 treatment cycles When looking at cumulative success across multiple cycles (counting all embryos banked from a single egg retrieval), the picture is somewhat brighter. A single-center study of women 38 and older found cumulative live birth rates of about 26 percent at ages 38 to 39, dropping to about 16 percent at 40 to 41 and to 7 percent at 42 to 43.15Human Reproduction. Cumulative live birth rates and number of oocytes retrieved in women of advanced age. A single centre analysis including 4500 women ≥38 years old
In that same dataset, retrieving more eggs improved cumulative outcomes, but with diminishing returns at older ages. For women in the 35 to 39 age range, cumulative live birth rates continued to climb with higher egg yields, reaching about 68 percent when 30 or more eggs were collected.16Human Reproduction. The number of oocytes associated with maximum cumulative live birth rates per aspiration depends on female age: a population study of 221 221 treatment cycles So while per-cycle odds are lower, multiple-cycle or aggressive-retrieval approaches can improve your overall chances.
Preimplantation genetic testing for aneuploidy (PGT-A), which screens embryos before transfer, has also shown benefit at this age. A recent analysis found that PGT-A was associated with higher cumulative live birth rates in women aged 38 to 40, with about a 14 percent relative improvement, while younger women showed no benefit or a slight decrease.17PubMed. Success rates with preimplantation genetic testing for aneuploidy in good prognosis patients are dependent on age This makes intuitive sense: when the rate of chromosomally abnormal embryos is higher, screening out those embryos before transfer avoids failed implantations and miscarriages.
CoQ10 and Preconception Strategies
Beyond the standard advice of taking folic acid, maintaining a healthy weight, and avoiding alcohol and tobacco, there is growing interest in supplements that target egg quality specifically. Coenzyme Q10 (CoQ10) has the most research behind it. CoQ10 is an antioxidant that plays a central role in mitochondrial energy production, and mitochondrial function in eggs declines with age. In animal studies, CoQ10 supplementation reversed age-related declines in both oocyte quality and ovarian reserve, and the fertility improvements were linked to restored mitochondrial function.18PubMed Central. Coenzyme Q10 restores oocyte mitochondrial function and fertility during reproductive aging
Clinical data in humans is more limited but points in the same direction. A review of available studies found that CoQ10 supplementation improved ovarian function, increased egg yield, and improved embryo quality, particularly in women with diminished ovarian reserve or older age.19PubMed Central. Exploring the protective effects of coenzyme Q10 on female fertility Most fertility specialists who recommend CoQ10 suggest starting it at least two to three months before trying to conceive or beginning IVF, since it takes roughly that long for eggs to mature from early stages to ovulation-ready.
Your Partner’s Age Matters Too
Most of the conversation about age and pregnancy focuses on the mother, but paternal age is not irrelevant. A large prospective cohort study of over 16,000 singleton deliveries found that compared with fathers under 30, older fathers were associated with 31 to 45 percent higher risks of gestational diabetes, 17 to 33 percent higher risks of cesarean delivery, and 32 to 36 percent higher risks of preterm birth.20Springer Nature. Association of Paternal Age Alone and Combined with Maternal Age with Perinatal Outcomes: A Prospective Multicenter Cohort Study in China The risks of complications were greatest when a younger father was paired with an older mother, though the statistical interaction between maternal and paternal age was not significant for most outcomes.
Sperm quality also declines with age, albeit more gradually than egg quality. Older fathers have higher rates of de novo genetic mutations in their sperm, which are associated with a small increase in certain conditions in offspring. If both partners are in their late 30s or early 40s, this is worth factoring into the timeline and any genetic counseling conversations.
Postpartum Recovery at an Older Age
Getting pregnant and delivering a baby are only part of the picture. Recovery after birth also differs with age, particularly when it comes to the pelvic floor. The muscles and connective tissue that support the bladder, uterus, and rectum are stretched during pregnancy and especially during vaginal delivery, and the body’s ability to repair that damage is influenced by age. Research has found that women over 30 show measurably weaker pelvic floor recovery after childbirth, including greater laxity in key support structures on ultrasound.21PubMed. Effects of Age and Parity on Pelvic Floor Dysfunction and Recovery in the Early Postpartum Period: A Retrospective Cohort Study In another study, women aged 25 and older were over 2.5 times more likely to experience decreased pelvic floor strength postpartum compared to women under 25.22PubMed Central. Increasing Age Is a Risk Factor for Decreased Postpartum Pelvic Floor Strength
At the molecular level, recent transcriptomic research on the levator ani muscle (the primary pelvic floor muscle) found that older maternal age was linked to patterns of cellular senescence and disrupted repair signaling, suggesting that the muscle tissue itself is slower to heal and more vulnerable to long-term dysfunction like pelvic organ prolapse.23PubMed Central. Transcriptomic evidence of remodeling in postpartum levator ani muscle associated with maternal age and recovery time after first vaginal delivery This does not mean you should avoid vaginal delivery at 38, but it does mean that pelvic floor physiotherapy before and after birth is especially worthwhile if you are having your first child at this age.
Mental Health After Delivery
The relationship between maternal age and postpartum depression is not as straightforward as “older equals more depressed.” A Canadian study found that among women who had recently delivered, the prevalence of depression was significantly higher in the 40 to 44 age group compared with women aged 30 to 35. But here is the nuance: among women in the same age group who had not recently delivered, there was no elevation in depression rates at all.24PubMed. The association between maternal age and depression This suggests that the interaction of age with the stresses of a new baby is the risk factor, not age alone.
A Norwegian study added another layer, finding that women of advanced maternal age had slightly higher psychological distress from early pregnancy through 18 months postpartum, but only among those with a prior history of depression. Women of advanced age with no history of depression were not at higher risk compared to younger mothers.25PubMed. Associations between advanced maternal age and psychological distress in primiparous women, from early pregnancy to 18 months postpartum In both studies, the youngest mothers actually had the highest overall rates of distress, which is a reminder that age-related risk in either direction is strongly modified by personal history and social support.
If you have a history of depression or anxiety and are planning a pregnancy at 38, this is worth discussing with your provider early. Screening and support structures are more effective when established before delivery, not scrambled together during the sleepless newborn period.
Late Motherhood and Longevity
Here is something counterintuitive that often gets left out of the “risks of older motherhood” conversation: having children later in life is consistently associated with living longer. In the Women’s Health Initiative, a large cohort of American women, those who had their first child at age 25 or later had significantly higher odds of surviving to age 90 compared with those who started earlier.26PubMed Central. Maternal Age at Childbirth and Parity as Predictors of Longevity Among Women in the United States: The Women’s Health Initiative A separate study from the Long Life Family Study found that each additional year of maternal age at the birth of a woman’s last child was associated with a 5 percent increase in the odds of exceptional longevity.27PubMed Central. Extended Maternal Age at Birth of Last Child and Women’s Longevity in the Long Life Family Study
This does not mean that having a baby at 38 will make you live longer. The association likely works in reverse: women who remain fertile later in life tend to have slower biological aging overall, and the same traits that allow late natural fertility also predict longer life. But it is a useful corrective to the doom-heavy framing that often surrounds late motherhood. The ability to conceive at 38 is not an anomaly or a sign that your body is being pushed past its limits. For many women, it is simply where their biology is.