Declining U.S. Fertility Rate Reflects Centuries-Old Choice to Forgo Motherhood

Women have always negotiated motherhood. What's new is the scale.
A scholar traces the long history of choosing not to have children and explains why more women are making that choice today.

In 2023, the United States recorded its lowest fertility rate in history, a milestone that invites not alarm but reflection. Scholar Peggy O'Donnell Heffington's new book reminds us that women have always negotiated the question of motherhood across centuries — what is new is not the choice itself, but its scale, its visibility, and the structural conditions that quietly shape it. The absence of paid leave, unaffordable childcare, and inflexible workplaces are not footnotes to this story; they are its architecture. How a society responds to these conditions will determine whether this moment is a turning point or simply a continuation of a much older reckoning.

  • The US fertility rate hit a historic low in 2023, with millennials on track to become the largest childfree generation in American history.
  • The shift feels sudden, but historian Peggy O'Donnell Heffington argues women have been making deliberate choices about motherhood for centuries — the scale and openness of today's refusal is what's unprecedented.
  • Practical barriers — no federal paid maternity leave, rigid workplaces, and the staggering cost of raising children — are driving decisions as much as personal values or ideology.
  • Demographers warn this is not a temporary dip: something structural is reshaping what women believe is possible and desirable in their lives.
  • The conversation is now landing in the policy arena, where workplace flexibility and affordability will determine whether this trend accelerates or finds a new equilibrium.

In 2023, the United States recorded its lowest fertility rate ever — a milestone demographers had long anticipated. To many, the trend reads as distinctly modern, shaped by feminism, economic anxiety, and shifting values. But University of Chicago scholar Peggy O'Donnell Heffington, in her new book Without Children: The Long History of Not Being a Mother, argues the choice to forgo motherhood is centuries old. Women have always made deliberate decisions about whether and how many children to bear. What the women's movement or contemporary work-life debates changed was not the choice itself, but the social permission to name it openly.

What has changed dramatically is the scale. More American women are saying no to motherhood than perhaps ever before, and Heffington identifies the forces behind that shift with precision: no federal paid maternity leave, workplaces that offer little flexibility, and the mounting unaffordability of raising children across much of the country. These are not abstract anxieties — they are the material conditions inside which reproductive decisions are made.

If current trends hold, millennials could become the largest childfree cohort in American history. Heffington's work suggests this is not a temporary dip awaiting reversal, but a structural recalibration — a fundamental shift in what women want and what they believe is within reach. Her book frames the present not as an anomaly but as the latest chapter in a long negotiation between women and the institution of motherhood, one whose next turn will depend heavily on whether American policy and workplaces choose to meet women where they are.

The United States hit a milestone in 2023 that demographers have been tracking for years: the fertility rate dropped to its lowest point on record. More women are choosing not to have children, a shift that feels distinctly modern—a product of contemporary feminism, economic anxiety, and changing values. But according to a new book by University of Chicago scholar Peggy O'Donnell Heffington, this story is far older and more complicated than it appears.

Heffington's work, Without Children: The Long History of Not Being a Mother, traces the decision to forgo motherhood back centuries. Women have always made deliberate choices about whether to become mothers and how many children to bear. This was not invented by the women's movement of the 1960s or 70s. It was not born from contemporary debates about work-life balance or the cost of childcare. The choice itself has deep historical roots, even if the language around it and the social permission to make it have shifted dramatically over time.

What has changed, though, is the scale and the visibility of that choice. Today, more women are openly saying no to motherhood than perhaps ever before in American history. The reasons are not mysterious. Heffington identifies a constellation of practical barriers that shape women's decisions: the absence of paid maternity leave at the federal level, the inflexibility of American workplaces, the sheer unaffordability of raising children in many parts of the country. These are not abstract concerns. They are the material conditions in which women make their reproductive choices.

The implications are significant. If current trends continue, the millennial generation could become the largest cohort of childfree women in American history. This is not a temporary dip in fertility rates that will reverse itself when economic conditions improve or when women reach a certain age. The data suggests something more structural is happening—a fundamental recalibration of what women want from their lives and what they believe is possible.

Heffington's book does more than document the present moment. It situates contemporary choices within a longer arc, showing that women have always negotiated the question of motherhood, sometimes with agency and sometimes without. What distinguishes this moment is that the choice is increasingly visible, increasingly discussed, and increasingly consequential for American demographics and policy. The book suggests that understanding this history is essential for understanding why women today are making the decisions they are making, and what might need to change if those decisions are to shift.

Women have made choices about limiting births and whether to become mothers at all for centuries
— Peggy O'Donnell Heffington, author of Without Children: The Long History of Not Being a Mother
La Conversación del Hearth Otra perspectiva de la historia
Inventor

Why does it matter that this choice is old? Doesn't the scale of it now make it feel new anyway?

Model

The scale does matter, absolutely. But knowing the history prevents us from treating this as a crisis born from millennial selfishness or feminist ideology. Women have always had to think hard about motherhood. What's different now is that more of them have the economic independence to act on that thinking.

Inventor

So what's actually stopping women from having children today, if it's not ideology?

Model

The practical stuff. No paid leave. Jobs that don't accommodate parenthood. The cost of housing, education, childcare. These aren't philosophical objections—they're structural barriers that make the math of motherhood impossible for many women.

Inventor

But couldn't those barriers be removed? Couldn't policy change this?

Model

Theoretically, yes. If the United States had robust paid leave, flexible workplaces, and affordable childcare, some women might choose differently. But the book suggests we're past the point where policy alone will reverse this trend. The choice itself has become normalized in a way it wasn't before.

Inventor

So we're looking at a permanent shift?

Model

If current conditions persist, yes. The millennials could be the first generation where being childfree is the norm rather than the exception. That's a genuinely new moment in American history.

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