Second Trimester

Week 24

Your baby is the size of a Corn

Baby Size

Corn

Length

8.4 in (21.3 cm)

Weight

1.3 lb (600 g)

Trimester

Second Trimester

Your Baby at Week 24

At 24 weeks, your baby is the size of a corn cob. Viability milestone: babies born at 24 weeks have a good chance of survival with medical support. The lungs are producing surfactant.

Key milestone: The baby's face is fully formed. The lungs produce surfactant (essential for breathing air). The sense of balance develops.

Your Symptoms

Stretch marks. Occasional shortness of breath. Feet may swell.

Tip for This Week

Start doing Kegel exercises to strengthen your pelvic floor.

Your Body at Week 24

The second trimester brings a welcome shift — your energy returns as hormone levels stabilize. Your uterus is now rising above the pubic bone, and your baby bump is becoming noticeable. Increased blood flow may give you that 'pregnancy glow,' but it can also cause nasal congestion and gum sensitivity.

Your baby at week 24 is the size of a Corn, measuring about 8.4 in (21.3 cm) and weighing roughly 1.3 lb (600 g). Your baby is becoming more active, and you may notice patterns in their movements — especially after meals or when you're resting.

Your Baby's Development This Week

At 24 weeks, your baby is the size of a corn cob. Viability milestone: babies born at 24 weeks have a good chance of survival with medical support. The lungs are producing surfactant. The key milestone this week is that the baby's face is fully formed. the lungs produce surfactant (essential for breathing air). the sense of balance develops.

The second trimester is when pregnancy becomes more tangible. Your baby's movements grow from subtle flutters to definite kicks, and their senses are awakening to the world outside. This is a beautiful time to begin bonding practices like daily voice notes.

This week's voice theme

Balanced and ready — the inner ear knows which way is up.

Imagine hearing this every morning — a voice note from your baby that evolves week by week.

Hear your baby's voice →

Frequently Asked Questions

What is the viability milestone?

24 weeks is considered the age of viability — babies born at this point have a significant chance of survival with NICU care.

What is surfactant?

A substance produced in the lungs that helps air sacs stay open, essential for breathing after birth.