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A person looking at a pregnancy test.

Updated on Nov. 14, 2025

2 minute read

How Common Are Recurring Miscarriages?

Emily Oster, PhD

Sperm illustration.

Updated on Nov. 14, 2025

2 minute read

How Likely Is CMV Transmission From Donor Sperm?

Emily Oster, PhD

A baby holding a parent's finger.

Updated on Nov. 13, 2025

8 minute read

The State of Parental Leave

Emily Oster, PhD

New parents holding their newborn baby.

Updated on Nov. 12, 2025

7 minute read

What We’re Missing About the Mental Health of New Parents

Erin O’Connor

A toddler eating with a spoon.

Updated on Nov. 12, 2025

2 minute read

What's the Right Portion Size for Toddler Meals?

Emily Oster, PhD

A breast pump and a bottle.

Updated on Nov. 12, 2025

8 minute read

Everything You Need to Know About Pumping

Emily Oster, PhD

Woman mixing a bottle of formula
In the news

Updated on Nov. 17, 2025

4 minute read

ByHeart Has Recalled All of Its Infant Formula

Emily Oster, PhD

A parent breastfeeding a newborn.

Updated on Nov. 5, 2025

3 minute read

How Do I Get My Baby to Latch?

Emily Oster, PhD

A parent playing with a newborn.

Updated on Nov. 6, 2025

8 minute read

What the Data Actually Says About Breastfeeding

Emily Oster, PhD

Updated on Oct. 31, 2025

4 minute read

What’s the Data Behind Post-Egg Retrieval Guidelines?

Meggie Smith, MD

A couple holding hands in a doctor's office.

Updated on Oct. 31, 2025

3 minute read

Is There an Advantage to Waiting In Between Embryo Transfers?

Meggie Smith, MD

Newborn's feet under blanket.

Updated on Oct. 30, 2025

8 minute read

All About Circumcision

Emily Oster, PhD

A doctor clamping the umblical cord of a newborn after delivery.

Updated on Oct. 29, 2025

2 minute read

How Should I Care for My Baby’s Umbilical Cord?

Emily Oster, PhD

Hands hold a model of the female reproductive system, including the uterus.

Updated on Oct. 23, 2025

5 minute read

Is There a Link Between Hair Relaxers and Cancer?

Emily Oster, PhD

A care taker with children in a daycare.
In the news

Updated on Oct. 23, 2025

9 minute read

Child Care Is Expensive and Hard to Find. Here’s How We Fix It.

Emily Oster, PhD

A baby wearing headphones.

Updated on Oct. 22, 2025

3 minute read

What’s a Safe Level of Noise for My Baby

Emily Oster, PhD