Key takeaways
- In the sixth month, your baby is about 30–32 cm — the size of a corn cob.
- Eyelids open is a key milestone this month.
- Common symptoms include swollen feet and heartburn.
- This month's key check: glucose tolerance test.
By the sixth month (weeks 21–24), your baby responds to your voice and its lungs are developing. Now about the size of a corn cob (30–32 cm), your baby is growing fast — and heartburn, back pain and swelling become more common.
How big is the baby in the sixth month?
Your baby is about 30–32 cm, roughly the size of a corn cob.
What is developing this month?
Key milestones in the sixth month include:
- Eyelids open
- Taste buds develop
- Lungs continue to mature
- Responds to voices and sound
What symptoms can you expect in the sixth month?
Every pregnancy is different, but common symptoms this month include:
- Swollen feet
- Heartburn
- Back pain
- Braxton Hicks (practice) contractions
What should you do this month?
- Eat small, frequent meals to ease heartburn
- Elevate your feet and stay hydrated for swelling
- Watch for your glucose (sugar) test appointment
- Continue supplements and keep monitoring your blood pressure
Which tests or scans are done in the sixth month?
Screening for gestational diabetes is a key focus around now.
- The glucose tolerance test (OGTT / GTT), usually 24–28 weeks, to screen for gestational diabetes
- Haemoglobin (to check for anaemia)
- Routine blood pressure, weight and urine checks, and a growth review