Week
Week 24
Milestone · Viability
Each baby is about the size of an ear of corn this week
- Weight each
- 600 g · 1 lb 5 oz
- Length each
- 30 cm · 11.8 in
What's happening this week
Three little faces are almost complete now, eyelashes and all. Their lungs are starting to make a special substance that will one day help their tiny air sacs stay open.
This week deserves a moment of celebration. If your three arrived right now, a dedicated team would have real, meaningful ways to help each one of them.
Three little wonders this week
- That lung substance is called surfactant, and it's one of the single biggest helpers for babies who arrive early.
- Their inner ears are fully built, so all three can now tell which way is up.
- Brain waves resembling a newborn's can be picked up from around this point.
The triplet twist
You may be offered your glucose test a little earlier than usual, since three placentas working together can nudge blood sugar around more than one does — just another way your care is tailored to your trio.
Something to look forward to
- About 4 weeks until 28 weeks, a real turning point.
- Roughly 8 weeks until the window when triplets often arrive — a good moment to start thinking about the hospital bag.
Why week 24 matters
24 weeks is the recognised threshold of viability. With loving, modern neonatal care, babies born now can survive — and every extra day inside you adds meaningfully to that. For a mother of triplets, reaching this week is something worth truly celebrating.
To Mom:
Reaching this milestone is a wonderful reason to celebrate the resilience of you and your babies. You are doing a miraculous job, and every day you nurture them inside you is a true gift.