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First Trimester (Weeks 1 - 13) Week 6 of 40
Last reviewed by medical team: June 2026 Evidence-Based Care Check
Fetal Size Comparison

Week 6 Size: Sweet Pea

Similar to a small sweet pea.

Length 0.5 cm 0.2 inches
Weight 0.2 g < 0.1 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 embryo's jaw, cheeks, chin, and ears are taking shape. Tiny buds that will become arms and legs are appearing. The heart is beating at about 100-150 times per minute.

Weekly Milestones

  • Limb Buds Develop
Maternal Health

Your Body & Symptoms

Mood swings are common due to hormonal shifts. You might also start feeling aversion to certain foods and smells.

Common Symptoms this Week

Nausea with or without vomiting Fatigue Sore breasts Frequent urination Mood swings

Doctor & Care Recommendations

  • Keep simple crackers by your bedside to eat before getting up to curb morning sickness.
  • Listen to your body and nap when needed.
  • Avoid raw fish, undercooked meats, and unpasteurized dairy.

Weekly Health Guides & Resources

Trimester Guide

First 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 6

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