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Close-up of a hand holding a pregnancy test.

Updated on Jul. 23, 2025

8 minute read

Understanding Secondary Infertility

Emily Oster, PhD

Two parents kiss a baby on either cheek.

Updated on Jul. 22, 2025

9 minute read

How to Baby-Proof Your Relationship

Yael Schonbrun

A parent breastfeeding her baby

Updated on Jul. 22, 2025

3 minute read

Do I Need to Give My Breastfed Baby Vitamin D Drops?

Emily Oster, PhD

A basket of variety of eggs.

Updated on Jul. 18, 2025

3 minute read

What Is the Data on Implanting Mosaic Embryos?

Kolbe Hancock, MD

A straw infant hat and pink heart-shaped sunglasses are seen on a yellow background.

Updated on Jul. 21, 2025

3 minute read

Is It Safe to Take My Newborn Out on a Hot Day?

Emily Oster, PhD

A person looking at the calendar in the phone and holding a pregnancy test.

Updated on Jul. 20, 2025

7 minute read

Navigating the Two-Week Wait

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 group of children playing.
In the news

Updated on Jul. 10, 2025

9 minute read

Are American Kids Really Doing Much Worse?

Emily Oster, PhD

A small toddler holds a pink sippy cup and licks the top of it while sitting in a stroller

Updated on Jul. 10, 2025

5 minute read

Is It OK to Use Sippy Cups?

Emily Oster, PhD

A parent and a child having a good time.

Updated on Jul. 10, 2025

3 minute read

Should I Correct My Toddler’s Pronunciation?

Jennifer Shonkoff

A kid sitting in a pool and smiling.

Updated on Jul. 10, 2025

9 minute read

Why Water Safety Is So Important

Emily Oster, PhD

A child kissing the forehead of her baby sibling.

Updated on Jul. 10, 2025

8 minute read

Preparing Your Child for a New Sibling

Emily Oster, PhD

A parent and a child wearing a cape made of blanket, goggles and flexing their arms

Updated on Jul. 9, 2025

7 minute read

What Do You Hope Your Child Is Like as an Adult?

Emily Oster, PhD

A green door and a yellow door symbolize two options.

Updated on Jul. 9, 2025

6 minute read

There’s No Secret Option C

Emily Oster, PhD

A mother looks concerned as she answers her cell phone in at her desk in an office.

Updated on Jul. 9, 2025

9 minute read

Why Schools Always Call Moms

Emily Oster, PhD