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Second Trimester (Weeks 14 - 27) Week 15 of 40
Last reviewed by medical team: June 2026 Evidence-Based Care Check
Fetal Size Comparison

Week 15 Size: Apple

About the size of a sweet apple.

Length 10.1 cm 4.0 inches
Weight 70 g 2.5 oz

Relative Visual Scale

Solid circle represents your baby's size. Dotted circle shows the full-term week 40 size threshold.

Inside The Womb

Baby's Development

The baby's skeleton is developing bones (ossification). They can sense light through their fused eyelids, and their hearing is starting to develop, allowing them to hear your heartbeat and digestive sounds.

Weekly Milestones

  • Hearing Development Begins
  • Bone Ossification
Maternal Health

Your Body & Symptoms

You might experience 'pregnancy brain' or forgetfulness. Nasal congestion and occasional nosebleeds can happen due to increased blood flow to mucous membranes.

Common Symptoms this Week

Forgetfulness Nosebleeds or stuffy nose Bleeding gums Heartburn

Doctor & Care Recommendations

  • Keep checklists and reminders to manage forgetfulness.
  • Use a saline nasal spray or humidifier for congestion.
  • Continue brushing and flossing gently, and visit your dentist.

Weekly Health Guides & Resources

Trimester Guide

Second Trimester Guide

Read comprehensive clinical milestones, screening checklists, and developmental guidelines for this phase.

Explore Trimester →
Common Symptoms

Track & Relieve Symptoms

Learn why symptoms occur, home remedies, and clinical indicators for this week:

Pregnancy Nutrition

Food Safety Checklists

Verify safety statuses, listeria and mercury risks, and safe alternatives for:

Full Nutrition Guide →

Frequently Asked Questions: Week 15

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