First Trimester

Week 7: Your Baby is the Size of a Blueberry

Your uterus has doubled in size even though you are not showing yet. You may feel bloated and your waistband might be getting tight. Fatigue continues as your body works hard to support the growing embryo.

Your baby at week 7

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Size of a Blueberry

Length: 1.0Weight: <1
Week 1Week 7 of 40Week 40

Baby Development

The brain is growing rapidly, producing about 100 new brain cells every minute. Arms and legs are lengthening and paddle-shaped hands are forming. The liver is producing red blood cells until the bone marrow takes over later. The appendix and pancreas are developing, and the intestines are starting to form.

Week 7 Highlight: Your baby's brain is developing at an incredible rate - about 100 new neurons are created every minute!

Common Symptoms

Continued morning sickness
Excessive saliva production
Food cravings or aversions
Constipation
Skin breakouts
Dizziness

Tips for Week 7

1

Stay hydrated - aim for 8-10 glasses of water daily.

2

Increase fibre intake to combat constipation.

3

Avoid unpasteurised dairy products and soft cheeses.

4

Begin looking into antenatal classes in your area.

South Africa Specific Info

If you are in the private healthcare system, your first gynae visit and ultrasound is usually around 6-8 weeks. Private medical aid schemes in SA (Discovery, Bonitas, Momentum, etc.) have specific maternity programmes - register for these early to access benefits and support.

All Pregnancy Weeks

1st Trimester 2nd Trimester 3rd Trimester

Frequently Asked Questions

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About the Author

Due Date Calculator SA Editorial Team

Our content is reviewed by healthcare professionals familiar with South African maternal health practices. We combine evidence-based medical information with local knowledge to support South African mums throughout their pregnancy journey. Our team includes contributors with backgrounds in midwifery, obstetrics, and maternal health education.

Last reviewed: February 2026