About half of all couples who begin an IVF journey do not achieve a live birth from that treatment course. The International Committee for Monitoring Assisted Reproductive Technology’s 2018 global report covering 2.5 million cycles found live birth rates per fresh transfer of 32.9% for women under 35, declining to 13.2% for women aged 40–42. Cumulative success rates over multiple cycles are higher, but the majority of couples who start IVF face the probability of at least one failed cycle, and many face the question of when to stop. Verhaak et al.’s systematic review of 25 years of IVF psychological research found that approximately 20% of women who discontinued IVF after repeated failure had not recovered to baseline psychological wellbeing at 18-month follow-up — concentrated in those who underwent three or more cycles without success and who had not developed alternative plans at the point of discontinuation.
The adoption pathway shows a markedly different regret structure. US Department of Health and Human Services AFCARS data report an adoption disruption rate (placement breakdown before finalization) of approximately 5% for domestic foster-care placements, and below 1% for dissolution of legally finalised adoptions. International adoption shows disruption rates of 1–3%. Brodzinsky et al.’s multi-decade research synthesis consistently finds 85–90% of adoptive parents describing the adoption as a positive or very positive decision in retrospect. The minority who report significant difficulty or regret are concentrated in older-age foster-care adoptions (children 5+) with complex trauma histories — not infant or toddler adoptions, where satisfaction rates are highest.
The critical framing issue is that IVF and adoption are rarely strict alternatives — most couples pursuing family formation consider IVF first, then adoption if IVF fails. The decision at the margin is usually not “IVF or adoption?” but “should we do another IVF cycle, or pivot to adoption?” At that margin, the evidence consistently shows that couples who transition to adoption after failed IVF recover psychological wellbeing quickly and express high satisfaction with the adoption outcome. Verhaak et al. noted that the absence of alternative planning — no adoption or acceptance of childlessness as a fallback — was among the strongest predictors of persistent IVF regret. Having the adoption pathway visible as an option, rather than as a fallback one must be forced to accept, appears to be protective against the worst IVF regret outcomes.