Week 15: Your Baby is the Size of an Apple
Your heart is pumping about 20% more blood than before pregnancy. You might feel warmer than usual and sweat more. Some women experience a stuffy nose throughout pregnancy due to increased blood flow to mucous membranes.
Your baby at week 15
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Size of a Apple
Baby Development
The baby's skeleton is developing from soft cartilage to hardened bone. The legs are now longer than the arms. The three tiny bones in the middle ear are forming, and the baby may begin to hear muffled sounds. Taste buds are developing on the tongue. The baby is very active, rolling, flipping, and twisting in the amniotic fluid.
Week 15 Highlight: Your baby can now sense light - if you shine a torch on your belly, they might move away from it!
Common Symptoms
Tips for Week 15
Include omega-3 fatty acids in your diet for baby's brain development.
Use a soft toothbrush if gums are sensitive and bleeding.
Stay active but avoid exercises that involve lying flat on your back.
Discuss amniocentesis with your doctor if recommended.
South Africa Specific Info
If first-trimester screening indicated a higher risk, your doctor may recommend amniocentesis around 15-18 weeks. In the private sector, this is available at major hospitals. In the public sector, referral to a tertiary hospital (like Groote Schuur, Chris Hani Baragwanath, or Steve Biko Academic Hospital) may be needed.
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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