What's a realistic IVF success rate at age 38?

National SART data shows ~26% live birth per egg retrieval cycle for women 38-40 using their own eggs. Cumulative across 3 cycles can approach 50%+ for patients who respond well. Individual clinic rates vary significantly — check SART's clinic report for your specific options.

When should I consider donor eggs?

Donor-egg IVF success rates hold at 40-55% per transfer regardless of the recipient's age through early 50s. Most clinics raise the conversation when own-egg cycles drop into single-digit success rates — typically after 42, after 1-2 failed own-egg cycles at 40-42, or for any patient with confirmed diminished ovarian reserve.

Does CoQ10 actually improve fertility?

Moderate evidence for improved ovarian response in diminished reserve patients at 200-400mg per day for 3-6 months pre-cycle. It's not a guaranteed benefit and won't reverse severe DOR, but the downside is minimal — it's one of the more evidence-backed supplements in this space.

How many eggs should I freeze at age 30?

Target 15-20 frozen eggs to give reasonable (but not guaranteed) odds at later use. Success rates of ~5-10% live birth per egg thawed mean each retrieval cycle — typically yielding 8-15 eggs in women under 35 — may require 1-2 cycles to reach the target bank. Banking eggs is insurance against future biological-clock pressure; it is not a guarantee of future pregnancy.

Age and Fertility — The Real Numbers on IVF Success by Age

SART-sourced IVF success rates by age cohort, why per-cycle vs cumulative stats differ, donor-egg data, and evidence-based interventions that help at each age.

Published 2026-04-20 Last reviewed 2026-04-20 Reading time ~6 min Methodology

Why fertility conversations collapse

Fertility conversations about age tend to collapse into two unhelpful extremes. On one side: "you're too old, IVF won't work." On the other: "just do IVF." Neither reflects the actual evidence. The data on age and fertility is noisier, more hopeful, and more individual than most patients realize.

This page summarizes SART national data by age cohort, explains why three different "success rate" numbers tell three different stories, covers the data on donor eggs, and lists which interventions actually matter at each age bracket. None of this replaces a consultation with a reproductive endocrinologist — but it does let you walk into that consultation with a better sense of what the numbers you'll hear actually mean.

IVF live-birth rates by age, own eggs (SART national 2023)

Under 35: ~51% live birth per egg retrieval cycle
35-37: ~39%
38-40: ~26%
41-42: ~12%
Over 42 with own eggs: ~4%

These are national averages. Individual clinic rates vary widely. SART's clinic-by-clinic report tool lets you compare specific practices — use it.

Why three different numbers tell three different stories

Per cycle started: includes cycles that didn't result in an embryo transfer (canceled for poor response, etc.). Most patients see this number first.

Per egg retrieval: more accurate comparison — averages across successful retrievals, excludes pre-retrieval cancellations.

Per embryo transfer: useful when comparing protocols within a clinic.

Cumulative (3 cycles): often 2-3× higher than single-cycle rates. If your plan includes multiple cycles, the cumulative number is what you should actually think about.

A 38-year-old has ~26% live birth per retrieval cycle, but cumulative across 3 cycles can approach 50%+. Same woman, same clinic, radically different conversation depending on which framing is used.

Donor-egg stats flatten the age curve

Donor-egg IVF success rates hold at 40-55% per transfer regardless of the recipient's age — through early 50s. This is the single most important number in age-and-fertility discussions: the limiting factor is egg quality, not uterine age.

If a patient in her early 40s is weighing "is pregnancy still possible," the answer is usually yes — but the pathway may need to route through donor eggs rather than own eggs, and that's an emotional decision as much as a medical one.

What changes at each age bracket

Under 35: The question is usually "should I be trying IVF yet?" For many patients with unexplained infertility in this range, 6 months of timed intercourse or IUI before escalating to IVF is standard. Diminished ovarian reserve (DOR) is the exception — testing AMH and AFC early if there's any family history of early menopause is reasonable.

35-37: Pace matters. The biological fertility decline is gradual but real in this window. Most clinics move to IVF after 3-6 months of failed timed intercourse or IUI.

38-40: Many clinics move directly to IVF after 2-3 failed timed cycles. Egg-quality decline is accelerating. Testing ovarian reserve (AMH, AFC) is standard before protocol selection.

41-42: Own-egg IVF success rates are in the single-to-low-double digits. Many clinics will still do several cycles; some recommend moving to donor eggs sooner. This is an individual conversation — some patients value the chance to try own eggs first, others value the higher success rates of donor eggs.

Over 42: Own-egg live-birth rates are ~4% per retrieval. Most clinics have honest conversations about donor eggs. It's not a "give up" conversation — donor eggs at 44 have the same 45%+ success rate as at 34.

Interventions with solid evidence

CoQ10 supplementation (typically 200-400mg/day for 3-6 months pre-cycle): moderate evidence for improved ovarian response in diminished reserve patients. Low downside, reasonable to try.

DHEA (25mg 3x/day for 3-4 months): evidence mixed but meta-analyses support modest benefit for poor responders. Monitor androgens; not for everyone.

Vitamin D normalization to 30+ ng/mL: correlated with better outcomes in observational data. Cheap fix if you're deficient.

Weight in the BMI 20-30 range: strongly correlated with both natural and IVF outcomes. BMI above 35 has measurable negative impact on live-birth rates.

Smoking cessation: massive effect size. Reduces live-birth rates by ~30-50% per SART data. Single biggest modifiable factor.

Treating underlying endocrine issues: thyroid normalization (TSH under 2.5 for fertility), prolactin correction, PCOS management with metformin if indicated.

Interventions marketed but with poor evidence

"Fertility diets" (specific food patterns): weak-to-no evidence beyond general healthful eating. The "Mediterranean diet for fertility" framing has modest observational support at best.

Most expensive supplements: prenatal vitamin, folate, CoQ10 if DOR, vitamin D if deficient — those have evidence. Most "fertility blend" multi-ingredient products do not.

Acupuncture: evidence is mixed; a 2018 meta-analysis showed no significant effect on IVF live births. May reduce stress, which helps adherence to the protocol.

PGT-A (preimplantation genetic testing for aneuploidy) for all patients: useful for age 38+ and for recurrent pregnancy loss. Routinely used at younger ages despite meta-analyses showing no benefit in per-patient live-birth rates under 35. Adds ~$3,000-5,000 per cycle.

Counterfactual notes

"35 is a fertility cliff" — overstated. Decline is gradual from 30-37, accelerates 37+, steep after 40. The "cliff" narrative causes unnecessary panic in 33-35 year olds; it underweights the ticking clock in 37-42 year olds.

"Having IVF means you'll have triplets" — outdated. Single-embryo transfer (SET) is now standard of care, and twin rates are under 10% in most clinics. Triplet rates are vanishingly rare.

"Frozen is worse than fresh" — reversed in recent data. Frozen-embryo transfers now OUTPERFORM fresh in many cohorts because frozen cycles allow better endometrial-lining synchronization.

"Egg freezing at 30 guarantees later pregnancy" — no. Frozen eggs have roughly the quality of the eggs at freezing age. You're banking against the older age, not guaranteeing success. Success rate per egg thawed varies but typically ~5-10% live birth per egg — so 15-20 frozen eggs at 30 gives better-but-not-guaranteed odds at 40.

What to bring to your first RE appointment

Timeline of trying to conceive — length of time, frequency, use of ovulation tracking.

Menstrual history — cycle length and regularity, any major changes over the years.

Previous pregnancies and outcomes (whether successful or miscarriage).

Family history of early menopause, repeated pregnancy loss, or fertility issues.

If male partner: semen analysis results if you have them (if not, it's going to be one of the first tests ordered).

Current medications, supplements, and any known health conditions.

Bottom line: Age matters for fertility outcomes, but the relationship is more personal than population statistics suggest. Individual variation is large; clinic-quality variation is large; interventions at the margin really do matter. The patients who make the best decisions are the ones who bring the right questions: which success-rate framing (per cycle vs cumulative vs per transfer) is this clinic quoting? What's my ovarian reserve on AMH and AFC? Given my specific profile, is own-egg IVF still statistically reasonable, or would donor eggs give meaningfully higher odds? Those are the conversations that convert uncertainty into a plan.

Frequently Asked Questions

What's a realistic IVF success rate at age 38?: National SART data shows ~26% live birth per egg retrieval cycle for women 38-40 using their own eggs. Cumulative across 3 cycles can approach 50%+ for patients who respond well. Individual clinic rates vary significantly — check SART's clinic report for your specific options.
When should I consider donor eggs?: Donor-egg IVF success rates hold at 40-55% per transfer regardless of the recipient's age through early 50s. Most clinics raise the conversation when own-egg cycles drop into single-digit success rates — typically after 42, after 1-2 failed own-egg cycles at 40-42, or for any patient with confirmed diminished ovarian reserve.
Does CoQ10 actually improve fertility?: Moderate evidence for improved ovarian response in diminished reserve patients at 200-400mg per day for 3-6 months pre-cycle. It's not a guaranteed benefit and won't reverse severe DOR, but the downside is minimal — it's one of the more evidence-backed supplements in this space.
How many eggs should I freeze at age 30?: Target 15-20 frozen eggs to give reasonable (but not guaranteed) odds at later use. Success rates of ~5-10% live birth per egg thawed mean each retrieval cycle — typically yielding 8-15 eggs in women under 35 — may require 1-2 cycles to reach the target bank. Banking eggs is insurance against future biological-clock pressure; it is not a guarantee of future pregnancy.

Primary sources consulted

Full source list + methodology: About & Sources — Fertility Knowledge Base