Third trimester begins at week 27. Baby now over 1kg. Eyes open for first time. RhD anti-D injection given. Visits become more frequent.
PREGNANCY MONTH 7 · WEEKS 25–28 · 3rd TRIMESTER
BABY AT START OF MONTH
🥦
cauliflower
MONTH
7
of 9 · Weeks 25–28
BABY AT END OF MONTH
🍆
eggplant
39.0cm · 1.00 kg
WEEK-BY-WEEK DEVELOPMENT — MONTH 7 (WK 25–28)
Week 25: Hands fully formed. Baby responds to touch on belly. Fat accumulating.
Week 26: Eyes open for first time. Brain growing rapidly. Immune system developing.
Week 27: 3rd trimester begins. Lungs maturing. Baby can hiccup.
Week 28: REM sleep begins — baby may be dreaming. Lanugo disappearing.
🌸 HOW YOU MAY FEEL
3rd trimester begins at week 27. Appointments become more frequent. Backache, fatigue and sleep problems return.
COMMON SYMPTOMS — MONTH 7
APPOINTMENTS & TESTS — MONTH 7
28-week antenatal check
Glucose test results reviewed
RhD anti-D injection if needed
Iron levels checked
💡 MONTH 7 TIP
The 28-week check is comprehensive — blood tests, blood pressure, bump measurement, and fetal position. This is also when RhD-negative mothers receive their anti-D injection.
What happens in month 7?
Month 7 (weeks 25-28) — 3rd trimester begins: Week 25: Hands fully formed. Baby responds to touch. Week 26: Eyes open for first time. Immune system developing. Week 27: 3rd trimester begins. Lungs maturing. Baby hiccups. Week 28: REM sleep begins — baby may be dreaming. Baby size at end of month 7: eggplant (~39cm, ~1kg) Key milestone: 3rd trimester begins, 28-week check including anti-D injection.
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Pregnancy month 7 · Weeks 25–28 · 3rd trimester · Sources: ACOG, NHS, WHO