Baby by Week
Week 8

Your week 8 guide

All major body systems have started developing, even though they remain immature.
Trimester

1

Month

2

Weeks left

32

Size at a glance

Comparison
Raspberry
Length
1.3–1.9 cm
Weight
Very small
Measurements are approximate. Healthy babies grow at different rates.

Baby development

The brain and nervous system are growing quickly.
Arms and legs lengthen as fingers and toes emerge from webbed hands and feet.
The small heart is beating rapidly and movement begins, though you cannot feel it yet.

Your body

Bloating, nausea, vivid dreams, breast tenderness, and smell sensitivity are common.
The uterus is growing even if there is no visible bump.
Light spotting can happen, but bleeding should still be discussed with a clinician.

This week's checklist

Adjust exercise and daily routines with your clinician's advice.
Consider comfortable, nonrestrictive clothing.
Decide when and how you want to share the news; there is no required timeline.

Call your care team

Report bleeding and ask about any pain that concerns you.
Seek urgent care for heavy bleeding, severe pain, fainting, fever, or dehydration.

Medical information, not medical advice

Every pregnancy is different. Use this guide for general education and follow the advice of your own maternity care team. Do not delay urgent care because of something you read here.
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Week 7
Week 9