Baby by Week
Week 9

Your week 9 guide

The embryo is taking on a more recognizable form and is now entering the fetal stage.
Trimester

1

Month

3

Weeks left

31

Size at a glance

Comparison
Cherry
Length
2.3 cm
Weight
0.07 oz
Measurements are approximate. Healthy babies grow at different rates.

Baby development

The digestive tract has formed and the tail-like end of the spinal cord is disappearing.
Bones and muscles are developing, allowing small bends and movements.
Facial features continue to become more distinct.

Your body

Nausea, fatigue, mood swings, cravings, and food aversions may still be strong.
Increased blood volume can make veins more visible.
Bloating may make clothing feel tighter before a true bump appears.

This week's checklist

Learn what to expect at upcoming prenatal visits and screening discussions.
Keep a running list of symptoms and questions.
Continue prenatal vitamins and foods you can tolerate.

Call your care team

Call if vomiting prevents hydration or daily functioning.
Seek urgent help for heavy bleeding, severe abdominal or shoulder pain, fainting, or weakness.

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.