Second Trimester

Week 15

Reviewed by Dr. Humaira Latif, OB-GYN & Ultrasound Specialist

Welcome to week 15 of your pregnancy. Here’s a gentle look at what to expect at 15 weeks pregnant — baby’s size, changes in your body, common 15 weeks pregnant symptoms and a caring tip from Dr. Humaira.

Baby's size

About the size of an apple — 10.1cm.

What's happening

Baby is practicing breathing movements with amniotic fluid. Bones are becoming harder, and hearing is starting to develop.

Your body

Blood volume continues to increase — mild dizziness on standing can happen.

Common symptoms

  • Increased appetite
  • Nasal congestion
  • Mild dizziness
  • Backache
When to call your doctor
  • Fainting
  • Bleeding
  • Severe headache with vision changes
Dr. Humaira's tip

Stand up slowly from lying or sitting positions to avoid light-headedness — it's a very common second-trimester quirk.

Educational only — not a substitute for in-person medical advice. Always follow your own doctor's guidance.

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