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24 Weeks Pregnant

You’re 24 weeks pregnant — in the second trimester, and 16 weeks to go until your due date. Your baby is about the size of a ear of corn this week.

Viability milestone — survival outside the womb becomes possible.

How big is your baby at 24 weeks?

Size of a

ear of corn

Length

~30 cm

Weight

~600 g

Last week your baby was about the size of a grapefruit; this week it's grown to roughly a ear of corn.

Sizes are averages from standard fetal-growth references. Every baby grows at its own pace — your provider tracks yours at scans.

Baby development at week 24

A significant milestone: 24 weeks is often considered the point of viability, when survival outside the womb becomes possible with intensive medical care. The lungs are developing cells that produce surfactant, which helps air sacs inflate. The face is fully formed, and the fetus is putting on weight steadily. About as long as an ear of corn.

Your body at 24 weeks

Common symptoms many people notice around week 24 include:

  • Regular, strong movements
  • Possible glucose-screening test around now
  • Backache and round-ligament pain
  • Itchy belly as the skin stretches

Symptoms vary enormously from person to person and pregnancy to pregnancy. Not having a symptom on this list is just as normal as having it.

Tips for week 24

  • The glucose screening for gestational diabetes is typically done around weeks 24–28
  • Moisturise an itchy, stretching belly
  • Start reading about birth preferences if you haven't

What trimester is 24 weeks?

Week 24 falls in the second trimester. As a quick map: the first trimester runs weeks 1–13, the second covers weeks 14–27, and the third is week 28 through birth (a due date is set at 40 weeks). Want your own dates? Our Pregnancy Due Date Calculator shows your due date and exactly how far along you are today.

The second trimester (weeks 14–27) is the stretch many people find most comfortable: early nausea usually fades, energy returns, and the bump becomes visible. The big checkpoint is the mid-pregnancy anatomy scan around week 20, and you'll likely feel the first movements during these weeks.

Frequently asked questions

How many months is 24 weeks pregnant?
24 weeks pregnant is about 6 months. Pregnancy months don't divide evenly into 4-week blocks, so week-to-month conversions are approximate — most providers track pregnancy by week, not month.
How big is the baby at 24 weeks?
At 24 weeks, the baby is about the size of a ear of corn, roughly 30 cm and around 600 g. These are averages — healthy babies vary, and your provider tracks your baby's own growth curve at scans.
What trimester is 24 weeks?
Week 24 is in the second trimester. The first trimester is weeks 1–13, the second is weeks 14–27, and the third is weeks 28 to birth (around week 40).

← All weeks: the full pregnancy week-by-week guide