Skip to content
Second Trimester (Weeks 14 - 27) Week 25 of 40
Last reviewed by medical team: June 2026 Evidence-Based Care Check
Fetal Size Comparison

Week 25 Size: Cauliflower

About the size of a head of cauliflower.

Length 34.6 cm 13.6 inches
Weight 660 g 23.3 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 skin is becoming less translucent and is smoothing out as fat accumulates. The capillaries are forming, giving the baby's skin a pinkish hue. The nostrils are beginning to open.

Weekly Milestones

  • Nostrils Open
  • Capillaries Form
Maternal Health

Your Body & Symptoms

Your movements are starting to slow down. You might feel acid reflux or heartburn more frequently as your stomach is pushed upwards by your growing uterus.

Common Symptoms this Week

Heartburn / acid reflux Hemorrhoids Restless legs Difficulty sleeping

Doctor & Care Recommendations

  • Eat smaller, upright meals and avoid eating right before sleeping.
  • Use pillows to support your back, hips, and belly at night.
  • Take warm baths or stretch before bed to soothe restless legs.

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 25

💌

Get weekly pregnancy updates

Sign up to receive developmental milestones, medical symptoms, and expert tips tailored to your specific week of pregnancy.