Emily Oster

6 min Read Emily Oster

My new book, The Unexpected, co-authored with Dr. Nathan Fox is officially out. It is a guide to navigating pregnancy during and after complications. Nate and I are hopeful that it will help many of you who need it.

The Unexpected book cover
ParentData

I want to tell you more about the book, starting with why Nate and I wrote it.   

All of my other booksExpecting Better, Cribsheet, The Family Firm — came out of my own experiences. I wrote them to answer questions I had, as a pregnant woman and then as a new parent.  

The Unexpected is a book not to answer my own questions but to answer yours. Specifically, to answer the thousands of questions I’ve gotten over the past decade from people whose pregnancies were more complicated than they had expected. I had a miscarriage — what is the chance it will happen again? Or My first pregnancy was complicated with hyperemesis (excessive nausea and vomiting) — should I do something different to prepare?  

How many people experience pregnancy complications?

As a society, we do not talk about pregnancy and birth complications nearly enough. If you read through the table of contents for The Unexpected — preterm birth, preeclampsia, stillbirth, gestational diabetes, and others — you could be forgiven for thinking Aren’t these complications rare? 

Some of them are, individually. But about half of pregnancies are complicated by one of the issues we discuss in this book. That’s 50% of pregnancies but more than 50% of pregnant women, since many people have multiple pregnancies. Despite this, when people do have these pregnancy complications, they often feel alone. Alone because we do not talk about them, and alone because resources are missing.

You are not alone.

What will you find in the book?

Although a core goal of The Unexpected is to make people feel less alone, and to bring the discussion of these complications to the fore, the actual work of the book is to answer the questions that those of you going through this need answered.

One piece of the answer is, as always, data. In the book, as we go through individual conditions, my work is to discuss the numbers. What does our best evidence say about the risk of recurrence? What evidence do we have on treatments — which might work, and how well they might work?  

The data alone isn’t enough. That’s often true, and it’s especially true here, where every individual’s circumstance is a bit different, and everyone is coming from their own place physically and emotionally. This is where the second part of each chapter comes in. In those sections, Nate talks through how to approach these conversations with your doctor. The goal is to have enough understanding and enough of a script to make these talks work for you — to get the information you need and make the decisions that work for you. 

My suspicion is that for readers who are navigating these issues, they will buy this book because they trust me for data, but in the end will find Nate’s sections to be the ones they really use. The book is a true partnership, and I was lucky to have such an amazing partner on it.

So that’s it! The book is out today. I’d love to say, Everyone buy my book! But in fact, I hope you do not need it. If you do, though, I’m glad that it’s there for you.

Join the conversation

There are a number of ways that I hope this book will shine a light on the experiences of people with complications in pregnancy, birth, and postpartum — starting with all of you.

In 2022, when we were outlining this project, I put out a survey on my Instagram asking women to share their stories and questions. I got thousands of responses. Some of these stories we included in The Unexpected, but there were so many more than we could put there. I want all of you to have access to them, so here they are:

I started ParentData because I want to be able to continue the conversations that start in my books. So I hope you will join in and help me keep this going far into the future.


The Unexpected: Table of Contents

Want to know more about what’s inside the book? Here’s an overview.

Part 1: Preparation

The first part of the book deals with preparation, and is intended to provide all readers with a general framework for how you might approach a pregnancy after complications. We talk through what kind of information you want to collect about your own medical history, and some decision tools that may be useful in thinking about how you want to move forward.

Chapter 1: Prepare Yourself

Engage with the question of a possible future pregnancy. Is this the right choice? Is now the right time? How can you know if you’re ready?

Chapter 2: Prepare Your Materials

Get your medical records. Talk to your doctor about your last pregnancy. You are the best keeper of your own information.

Chapter 3: Prepare Your Script

The first visit with a provider — either before another pregnancy or once pregnant — is an opportunity to set expectations and make a plan. 

Part 2: Complications

The second part of the book is divided into condition-specific chapters. These are designed to be read as needed. In some cases, you may need multiple chapters. In others, only one. In each chapter, we talk through the data on recurrence and prevention and then offer a perspective on how to approach conversations with your providers about these issues. 

We have tried hard to cover a large share of the major issues that arise in pregnancy, birth, and afterward. However, there will inevitably be conditions or circumstances we have missed. In these cases, we hope that going back through the first part of the book will give you a place to begin as you proceed in conversations with your own providers.

Chapters 4-5: First-Trimester Complications
Hyperemesis Gravidarum and First-Trimester Miscarriage

Chapters 6-13: Second- and Third-Trimester Complications
Second-Trimester Miscarriage, Gestational Diabetes, Preeclampsia, Fetal Growth Restriction, Preterm Birth, Cesarean Section (and VBAC), Severe Maternal Morbidity, Stillbirth

Chapters 14-16: Post-Birth Complications
Recovery Complications, Postpartum Mental Health Conditions, Breastfeeding Barriers

0 Comments
Inline Feedbacks
View all comments
Two pieces of yellow yarn are stretched across a blue background. The first piece is relatively straight, left to right. The second is tangled.

2 min read

I Had Pregnancy Complications the First Time. Will They Happen for the Second Pregnancy?

I had severe nausea, fatigue, anxiety, and depression and preeclampsia (that one toward the end only) in my first pregnancy Read more

Emily Oster
Woman running on trail

Mar 02 2024

7 min read

Running, Activism, and Motherhood

On November 4, 2018, I ran my fourth New York City Marathon in the best shape of my life. The Read more

Alison Mariella Désir
Four question marks

Apr 25 2024

3 min read

How Likely is Another Miscarriage After an Unexplained One?

I had a missed miscarriage, caught at 12.5 weeks. This was following a normal NIPT, and the pregnancy tissue analysis Read more

Emily Oster
Parent in hospital bed hooked up to machines with newborn lying on their chest

Apr 27 2024

7 min read

When Everything Falls Apart

Before you read on: This essay describes someone’s traumatic birth experience, and may be difficult for some people to read. Read more

Kayleigh Summers

Instagram

left right
I hear from many of you that the information on ParentData makes you feel seen. Wherever you are on your journey, it’s always helpful to know you’re not alone. 

Drop an emoji in the comments that best describes your pregnancy or parenting searches lately… 💤🚽🍻🎒💩

I hear from many of you that the information on ParentData makes you feel seen. Wherever you are on your journey, it’s always helpful to know you’re not alone.

Drop an emoji in the comments that best describes your pregnancy or parenting searches lately… 💤🚽🍻🎒💩
...

Milestones. We celebrate them in pregnancy, in parenting, and they’re a fun thing to celebrate at work too. Just a couple years ago I couldn’t have foreseen what this community would grow into. Today, there are over 400,000 of you here—asking questions, making others feel seen wherever they may be in their journey, and sharing information that supports data > panic. 

It has been a busy summer for the team at ParentData. I’d love to take a moment here to celebrate the 400k milestone. As I’ve said before, it’s more important than ever to put good data in the hands of parents. 

Share this post with a friend who could use a little more data, and a little less parenting overwhelm. 

📷 Me and my oldest, collaborating on “Expecting Better”

Milestones. We celebrate them in pregnancy, in parenting, and they’re a fun thing to celebrate at work too. Just a couple years ago I couldn’t have foreseen what this community would grow into. Today, there are over 400,000 of you here—asking questions, making others feel seen wherever they may be in their journey, and sharing information that supports data > panic.

It has been a busy summer for the team at ParentData. I’d love to take a moment here to celebrate the 400k milestone. As I’ve said before, it’s more important than ever to put good data in the hands of parents.

Share this post with a friend who could use a little more data, and a little less parenting overwhelm.

📷 Me and my oldest, collaborating on “Expecting Better”
...

I spend a lot of time talking people down after they read the latest panic headline. In most cases, these articles create an unnecessary amount of stress around pregnancy and parenting. This is my pro tip for understanding whether the risk presented is something you should really be worrying about.

Comment “link” for an article with other tools to help you navigate risk and uncertainty.

#emilyoster #parentdata #riskmanagement #parentstruggles #parentingstruggles

I spend a lot of time talking people down after they read the latest panic headline. In most cases, these articles create an unnecessary amount of stress around pregnancy and parenting. This is my pro tip for understanding whether the risk presented is something you should really be worrying about.

Comment “link” for an article with other tools to help you navigate risk and uncertainty.

#emilyoster #parentdata #riskmanagement #parentstruggles #parentingstruggles
...

Here’s why I think you don’t have to throw away your baby bottles.

Here’s why I think you don’t have to throw away your baby bottles. ...

Drop your toddlers favorite thing right now in the comments—then grab some popcorn.

Original thread source: Reddit @croc_docs

Drop your toddlers favorite thing right now in the comments—then grab some popcorn.

Original thread source: Reddit @croc_docs
...

Just keep wiping.

Just keep wiping. ...

Dr. Gillian Goddard sums up what she learned from the Hot Flash  S e x  Survey! Here are some key data takeaways:

🌶️ Among respondents, the most common s e x u a l frequency was 1 to 2 times per month, followed closely by 1 to 2 times per week
🌶️ 37% have found their sweet spot and are happy with the frequency of s e x they are having
🌶️ About 64% of respondents were very or somewhat satisfied with the quality of the s e x they are having

Do any of these findings surprise you? Let us know in the comments!

#hotflash #intimacy #midlifepleasure #parentdata #relationships

Dr. Gillian Goddard sums up what she learned from the Hot Flash S e x Survey! Here are some key data takeaways:

🌶️ Among respondents, the most common s e x u a l frequency was 1 to 2 times per month, followed closely by 1 to 2 times per week
🌶️ 37% have found their sweet spot and are happy with the frequency of s e x they are having
🌶️ About 64% of respondents were very or somewhat satisfied with the quality of the s e x they are having

Do any of these findings surprise you? Let us know in the comments!

#hotflash #intimacy #midlifepleasure #parentdata #relationships
...

Should your kid be in a car seat on the plane? The AAP recommends that you put kids under 40 pounds into a car seat on airplanes. However, airlines don’t require car seats.

Here’s what we know from a data standpoint:
✈️ The risk of injury to a child on a plane without a carseat is very small (about 1 in 250,000)
✈️ A JAMA Pediatrics paper estimates about 0.4 child air crash deaths per year might be prevented in the U.S. with car seats 
✈️ Cars are far more dangerous than airplanes! The same JAMA paper suggests that if 5% to 10% of families switched to driving, then we would expect more total deaths as a result of this policy. 

If you want to buy a seat for your lap infant, or bring a car seat for an older child, by all means do so! But the additional protection based on the numbers is extremely small.

#parentdata #emilyoster #flyingwithkids #flyingwithbaby #carseats #carseatsafety

Should your kid be in a car seat on the plane? The AAP recommends that you put kids under 40 pounds into a car seat on airplanes. However, airlines don’t require car seats.

Here’s what we know from a data standpoint:
✈️ The risk of injury to a child on a plane without a carseat is very small (about 1 in 250,000)
✈️ A JAMA Pediatrics paper estimates about 0.4 child air crash deaths per year might be prevented in the U.S. with car seats
✈️ Cars are far more dangerous than airplanes! The same JAMA paper suggests that if 5% to 10% of families switched to driving, then we would expect more total deaths as a result of this policy.

If you want to buy a seat for your lap infant, or bring a car seat for an older child, by all means do so! But the additional protection based on the numbers is extremely small.

#parentdata #emilyoster #flyingwithkids #flyingwithbaby #carseats #carseatsafety
...

SLEEP DATA 💤 PART 2: Let’s talk about naps. Comment “Link” for an article on what we learned about daytime sleep!

The first three months of life are a chaotic combination of irregular napping, many naps, and a few brave or lucky souls who appear to have already arrived at a two-to-three nap schedule. Over the next few months, the naps consolidate to three and then to two. By the 10-to-12-month period, a very large share of kids are napping a consistent two naps per day. Over the period between 12 and 18 months, this shifts toward one nap. And then sometime in the range of 3 to 5 years, naps are dropped. What I think is perhaps most useful about this graph is it gives a lot of color to the average napping ages that we often hear. 

Note: Survey data came from the ParentData audience and users of the Nanit sleep monitor system. Both audiences skew higher-education and higher-income than the average, and mostly have younger children. The final sample is 14,919 children. For more insights on our respondents, read the full article.

SLEEP DATA 💤 PART 2: Let’s talk about naps. Comment “Link” for an article on what we learned about daytime sleep!

The first three months of life are a chaotic combination of irregular napping, many naps, and a few brave or lucky souls who appear to have already arrived at a two-to-three nap schedule. Over the next few months, the naps consolidate to three and then to two. By the 10-to-12-month period, a very large share of kids are napping a consistent two naps per day. Over the period between 12 and 18 months, this shifts toward one nap. And then sometime in the range of 3 to 5 years, naps are dropped. What I think is perhaps most useful about this graph is it gives a lot of color to the average napping ages that we often hear.

Note: Survey data came from the ParentData audience and users of the Nanit sleep monitor system. Both audiences skew higher-education and higher-income than the average, and mostly have younger children. The final sample is 14,919 children. For more insights on our respondents, read the full article.
...

Happy Father’s Day to the Fathers and Father figures in our ParentData community! 

Tag a Dad who this holiday may be tricky for. We’re sending you love. 💛

Happy Father’s Day to the Fathers and Father figures in our ParentData community!

Tag a Dad who this holiday may be tricky for. We’re sending you love. 💛
...

“Whilst googling things like ‘new dad sad’ and ‘why am I crying new dad,’ I came across an article written by a doctor who had trouble connecting with his second child. I read the symptoms and felt an odd sense of relief.” Today we’re bringing back an essay by Kevin Maguire of @newfatherhood about his experience with paternal postpartum depression. We need to demystify these issues in order to change things for the better. Comment “Link” for a DM to read his full essay.

#parentdata #postpartum #postpartumdepression #paternalmentalhealth #newparents #emilyoster

“Whilst googling things like ‘new dad sad’ and ‘why am I crying new dad,’ I came across an article written by a doctor who had trouble connecting with his second child. I read the symptoms and felt an odd sense of relief.” Today we’re bringing back an essay by Kevin Maguire of @newfatherhood about his experience with paternal postpartum depression. We need to demystify these issues in order to change things for the better. Comment “Link” for a DM to read his full essay.

#parentdata #postpartum #postpartumdepression #paternalmentalhealth #newparents #emilyoster
...

What does the data say about children who look more like one parent? Do they also inherit more character traits and mannerisms from that parent? Let’s talk about it 🔎

#emilyoster #parentdata #parentingcommunity #lookslikedaddy #lookslikemommy

What does the data say about children who look more like one parent? Do they also inherit more character traits and mannerisms from that parent? Let’s talk about it 🔎

#emilyoster #parentdata #parentingcommunity #lookslikedaddy #lookslikemommy
...

SLEEP DATA 💤 We asked you all about your kids’ sleep—and got nearly 15,000 survey responses to better understand kids’ sleep patterns. Comment “Link” for an article that breaks down our findings!

This graph shows sleeping location by age. You’ll notice that for the first three months, most kids are in their own sleeping location in a parent’s room. Then, over the first year, this switches toward their own room. As kids age, sharing a room with a sibling becomes more common. 

Head to the newsletter for more and stay tuned for part two next week on naps! 🌙

#parentdata #emilyoster #childsleep #babysleep #parentingcommunity

SLEEP DATA 💤 We asked you all about your kids’ sleep—and got nearly 15,000 survey responses to better understand kids’ sleep patterns. Comment “Link” for an article that breaks down our findings!

This graph shows sleeping location by age. You’ll notice that for the first three months, most kids are in their own sleeping location in a parent’s room. Then, over the first year, this switches toward their own room. As kids age, sharing a room with a sibling becomes more common.

Head to the newsletter for more and stay tuned for part two next week on naps! 🌙

#parentdata #emilyoster #childsleep #babysleep #parentingcommunity
...

Weekends are good for extra cups of ☕️ and listening to podcasts. I asked our team how they pod—most people said on walks or during chores. What about you?

Comment “Link” to subscribe to ParentData with Emily Oster, joined by some excellent guests.

#parentdata #parentdatapodcast #parentingpodcast #parentingtips #emilyoster

Weekends are good for extra cups of ☕️ and listening to podcasts. I asked our team how they pod—most people said on walks or during chores. What about you?

Comment “Link” to subscribe to ParentData with Emily Oster, joined by some excellent guests.

#parentdata #parentdatapodcast #parentingpodcast #parentingtips #emilyoster
...