First Trimester

Week 4 of Pregnancy

Your baby is the size of blueberry

Weight 40 g

Length 2.9 cm

Week 4 of 40 10% Complete

Week 3

Week 5

Baby Development

What's happening inside the womb this week

Week 4 is part of early organ formation. Your baby's brain, spinal cord, and heart development continue quickly. Tiny facial structures and limb buds become more defined, and circulation becomes stronger each week.

By this stage, foundational systems are being built. Although your bump may still be small, inside the uterus development is rapid and highly sensitive to nutrition, hydration, and rest.

Your Body This Week

Physical and emotional changes you may experience

Hormonal changes in week 4 may cause nausea, breast tenderness, fatigue, mood shifts, and bloating. Frequent urination can increase as blood flow and kidney activity rise.

Focus on gentle routines, short rest breaks, and hydration. If vomiting is severe, you cannot keep fluids down, or pain/bleeding occurs, contact your doctor promptly.

Common Symptoms

What many mothers experience at week 4

Nausea or morning sickness

Breast tenderness

Fatigue

Bloating or mild cramps

Frequent urination

Book regular antenatal checkups and discuss supplements (especially folic acid and iron). Review warning signs: heavy bleeding, severe pain, and persistent vomiting.

Book an Appointment

Nutrition Tips

What to eat and avoid during week 4

Choose small, frequent meals with protein, whole grains, fruit, and vegetables. Use iron-rich foods and vitamin C combinations. Avoid unpasteurized and high-risk foods.

Safe Exercise Tips

Staying active safely during week 4

Try 20-30 minutes of gentle walking most days and light stretching. Avoid overheating and high-impact activity if you feel dizzy or unwell.

Week 4 Checklist

Track your progress — saved automatically

Take prenatal vitamins and medicines as prescribed
Drink adequate water throughout the day
Track any unusual symptoms or changes
Plan or attend your next antenatal visit
Do at least 20 minutes of safe movement
Prioritize sleep and stress management

Medical Disclaimer: This content is for informational purposes only. Always consult your doctor, midwife, or licensed healthcare provider for medical advice specific to your pregnancy.

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