First Trimester (Weeks 1–12)
- Week 6: Heart starts beating at 160 bpm!
- Week 8: All major organs begin forming. Baby is the size of a raspberry.
- Week 10: Tiny fingerprints begin forming.
- Week 12: Baby can make fists. Risk of miscarriage drops significantly.
Second Trimester (Weeks 13–26)
- Week 16: Baby can hear your voice. Start talking and singing!
- Week 20: The big anatomy scan. Baby is ~25 cm long.
- Week 24: Viability milestone — lungs begin producing surfactant.
Third Trimester (Weeks 27–40)
- Week 28: Baby opens and closes eyes, has a sleep cycle.
- Week 32: Rapid brain development. Baby gains ~200 g/week.
- Week 36: Baby drops into pelvis position.
- Week 40: Full term! Average Indian baby weighs 2.7–3.2 kg.
Key Scans in India
- Dating scan: 8–12 weeks
- NT scan: 11–14 weeks
- Anomaly scan: 18–22 weeks
- Growth scan: 28–32 weeks
- Term scan: 36–38 weeks