The Real Impact of Weight Bias in Pregnancy with Jen McLellan

Pregnancy is often framed as a universal experience, something that follows a familiar arc regardless of who is moving through it. There are expectations about how bodies should look, how they should change, and what the experience should feel like.

But for many people, especially those in larger bodies, pregnancy unfolds within a very different context. It is shaped not only by physical changes, but by a healthcare system and cultural narrative that often begin with assumptions.

Assumptions about risk, capability, and what a body can or cannot do.

In this episode of Transformed by Birth, I sit down with Jen McLellan, childbirth educator, TEDx speaker, host of the Plus Mommy Podcast, and founder of Plus Size Birth, to explore the realities of navigating pregnancy in a larger body, and why this conversation is both necessary and overdue.

Weight Bias in Pregnancy with Jen McLellan

The Legacy of BMI in Pregnancy Care

Much of the experience begins with BMI (body mass index), a tool still widely used to categorize health and determine risk in pregnancy.

As Jen explains, BMI was developed in the 1800s by a mathematician studying a narrow population, yet it continues to shape modern medical care in profound ways.

Today, approximately 30% of people who can become pregnant have a BMI over 30. And yet, many are categorized as high-risk from the outset, often without a fuller consideration of their overall health.

This classification can influence the care they receive, including access to providers, models of care, and the types of interventions recommended.

What begins as a number quickly becomes a narrative.

When Risk Becomes Assumption

Risk is a necessary part of any medical conversation, particularly in pregnancy. But how risk is communicated matters.

One of the most important distinctions Jen offers is between relative risk and actual risk. Relative risk compares one group to another, often resulting in statistics that sound alarming when taken out of context. Actual risk, however, reflects how likely something is to occur overall.

For example, while the relative risk of gestational diabetes may be higher for someone in a larger body, the overall likelihood remains relatively low. Without that context, information can easily become fear-inducing rather than informative.

Over time, repeated messaging around risk can begin to shape how someone sees their body and what they believe is possible. What may begin as caution can gradually turn into expectation.

And expectation, especially when held by care providers, can influence outcomes in subtle but meaningful ways.

Jen McLellan Quote

The Legacy of BMI in Pregnancy Care

Much of the experience begins with BMI (body mass index), a tool still widely used to categorize health and determine risk in pregnancy.

As Jen explains, BMI was developed in the 1800s by a mathematician studying a narrow population, yet it continues to shape modern medical care in profound ways.

Today, approximately 30% of people who can become pregnant have a BMI over 30. And yet, many are categorized as high-risk from the outset, often without a fuller consideration of their overall health.

This classification can influence the care they receive, including access to providers, models of care, and the types of interventions recommended.

What begins as a number quickly becomes a narrative.

When Risk Becomes Assumption

Risk is a necessary part of any medical conversation, particularly in pregnancy. But how risk is communicated matters.

One of the most important distinctions Jen offers is between relative risk and actual risk. Relative risk compares one group to another, often resulting in statistics that sound alarming when taken out of context. Actual risk, however, reflects how likely something is to occur overall.

For example, while the relative risk of gestational diabetes may be higher for someone in a larger body, the overall likelihood remains relatively low. Without that context, information can easily become fear-inducing rather than informative.

Over time, repeated messaging around risk can begin to shape how someone sees their body and what they believe is possible. What may begin as caution can gradually turn into expectation.

And expectation, especially when held by care providers, can influence outcomes in subtle but meaningful ways.

Jen McLellan Quote

The Emotional Impact of Weight Bias

The impact of weight bias is not limited to medical recommendations. It is also deeply emotional.

Many people enter pregnancy already carrying a history of difficult healthcare interactions, where weight was the primary focus, often at the expense of more holistic care. This cumulative experience can create a sense of mistrust before pregnancy even begins.

There is also the absence of representation. As Jen shares, it can be difficult to find images or stories that reflect pregnancy in a larger body. When people do not see themselves reflected, it reinforces the idea that their experience is outside what is considered normal.

These layers shape how someone feels in their body, how they interpret information, and how safe they feel within their care.

How Bias Shows Up in Care

Weight bias can appear in both overt and subtle ways.

It may show up as additional testing without full explanation, repeated screening based on assumption rather than individual need, or recommendations presented without clear context.

It can also appear in the environment itself. Waiting rooms with chairs that do not accommodate different bodies. Gowns that do not fully close. Equipment that is not designed to fit comfortably or accurately.

These are not minor inconveniences. They influence whether a person feels dignified, respected, and able to advocate for themselves.

Reclaiming Agency Through Information and Support

A central thread in Jen’s work is helping people move beyond fear into a more grounded sense of trust and self-advocacy.

This begins with access to clear, evidence-based information; understanding how to interpret risk and knowing what questions to ask.

It also involves finding care providers who offer context, engage in conversation, and approach care with curiosity rather than assumption.

Perhaps most importantly, it involves reconnecting with the understanding that bodies are not inherently problems to be solved. They are capable systems, deserving of thoughtful, individualized care.

When people are supported in this way, something shifts. They feel more confident in their decision-making, more connected to their bodies, and more able to participate actively in their care.

At its core, size-inclusive care is not complicated, though it does require intention.

It is compassionate, evidence-based care that centers the person rather than their weight. It involves listening, explaining, and offering options without judgment.

As Jen shares, one of the most impactful shifts would be integrating size-inclusive education into maternity care as a foundational part of provider training.

Because when care changes at that level, the effects extend far beyond individual interactions. They begin to reshape the system as a whole.

Resources Mentioned in This Episode

Continue your exploration with more Transformed by Birth podcast episodes, and connect with us on Instagram @transformedbybirth where the conversation keeps unfolding.

 

About Dr. Britta Bushnell

is a writer, teacher, storyteller, and mentor who blends her eclectic training, years of experience, and areas of study into a unique offering for individuals, couples, professionals, and groups. Britta is currently deep at work writing her forthcoming book, Transformed by Birth: Illuminating cultural ideals to enhance the experience of childbirth.