Week 25: Your Baby is the Size of a Cauliflower
Haemorrhoids are common at this stage due to increased pressure on the blood vessels in your rectum. Heartburn may be worse as the uterus pushes up against your stomach. You might find it harder to sleep and may need multiple position changes during the night.
Your baby at week 25
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Size of a Cauliflower
Baby Development
The baby is gaining weight and filling out. Capillaries are forming under the skin and filling with blood, giving the skin a pink or reddish colour. The lungs are continuing to develop, and the nostrils are beginning to open. The baby can now respond to familiar voices and may become more active when you speak or play music. The hands are fully developed with a strong grasp.
Week 25 Highlight: Your baby's nostrils are opening and they are practising breathing movements with amniotic fluid!
Common Symptoms
Tips for Week 25
Increase fibre and water intake to manage constipation and haemorrhoids.
Avoid standing for long periods.
Do pelvic floor exercises regularly.
Play music to your baby - they can hear and may respond!
South Africa Specific Info
If you haven't done so already, notify your employer in writing about your pregnancy and intended maternity leave dates. In South Africa, you are entitled to four consecutive months of maternity leave. You can start your leave four weeks before your due date or earlier if medically advised. Your employer cannot dismiss you because of your pregnancy.
All Pregnancy Weeks
Frequently Asked Questions
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