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Pregnant person in a dark dress leaning against pillows in bed, with her hands on her stomach.

Updated on Sep. 30, 2025

2 minute read

How Common Is Preterm Labor?

Emily Oster, PhD

A teal blister pack of prenatal vitamins is seen on a white background.

Updated on Sep. 26, 2025

8 minute read

Is There a Best Prenatal Vitamin? What You Need and What You Don’t

Emily Oster, PhD

Updated on Sep. 26, 2025

4 minute read

Why Are There So Many Prenatal Appointments?

Emily Oster, PhD

A person with a pregnant belly stands in front of a green hedge and holds a marijuana leave in front of her belly.

Updated on Sep. 25, 2025

6 minute read

Cannabis in Pregnancy

Emily Oster, PhD

medical doctors in the operation theater performing surgery

Updated on Sep. 23, 2025

2 minute read

Do Epidurals Fail During C-Sections?

Emily Oster, PhD

A person wearing red light mask in a professional set up.

Updated on Sep. 23, 2025

3 minute read

Do Red Light Masks Do Anything?

Emily Oster, PhD

A baby cries while a breastfeeding woman suffering from mastitis cups her breast in pain.

Updated on Aug. 21, 2025

9 minute read

Mastitis and the Guidance to Treat It

Emily Oster, PhD

An unhappy-looking person sitting on bed and looking at pills.

Updated on Aug. 8, 2025

12 minute read

Antidepressants Before, During, and After Pregnancy

Emily Oster, PhD

a person setting up food on the table

Updated on Aug. 8, 2025

11 minute read

How Worried Should You Be About Phthalates?

Emily Oster, PhD

close up of a grocery bucket in a super market

Updated on Aug. 8, 2025

4 minute read

Is Listeria Becoming More Common?

Emily Oster, PhD

a spoon full of colostrum spilled on a blue surface

Updated on Aug. 8, 2025

7 minute read

Why Are Wellness Influencers Taking Colostrum?

Emily Oster, PhD

A pregnant person holding a tiny paper cut-out of heart.

Updated on Jul. 29, 2025

10 minute read

Making the Case for More Research on Pregnant Women

Emily Oster, PhD

A person doing research and looking stressed.

Updated on Aug. 2, 2025

9 minute read

When “It Can’t Hurt” Actually Can

Emily Oster, PhD

Pregnant person wearing pink holding ultrasound in front of their belly.

Updated on Jul. 18, 2025

2 minute read

How Can I Measure My CMV Risk?

Emily Oster, PhD

A pregnant person playing with her baby.

Updated on Jul. 16, 2025

2 minute read

Will Pregnancy Affect My Milk Supply?

Emily Oster, PhD

A pregnant person taking pills from a box

Updated on Jun. 27, 2025

3 minute read

What’s the Data Behind Baby Aspirin Recommendations?