What does it mean that my baby is now a fetus?

The transition from embryo to fetus at week 9 means all major organs and body systems have formed. The fetal period focuses on growth and maturation of these organs rather than forming new ones.

When will my morning sickness end?

For most women, morning sickness begins to improve around weeks 12-14. However, some women experience nausea throughout pregnancy. If your nausea is severe, talk to your doctor about treatment options.

First Trimester 9 weeks pregnant

Pregnancy Week 9 - Hello Fetus! Baby's First Movements

At 9 weeks, your baby has graduated from embryo to fetus! All major organs, muscles, and nerves have begun to function. The head is becoming more rounded, and the tail has completely disappeared. Your baby is starting to make tiny movements.

Cherry

Baby Size

2.3 cm

Length

2 grams

Weight

Week 9

of 42

Baby Development This Week

Welcome to the fetal period! Your baby's head is becoming more rounded and proportionate. All essential organs have formed and are beginning to function. The heart has four chambers and is pumping blood. Tiny muscles are forming, allowing your baby to make small movements, though you cannot feel them yet. Eyelids are forming and will fuse shut to protect the developing eyes. Fingers and toes have lost their webbed appearance and are now distinct. Reproductive organs are beginning to develop.

Changes in Your Body

Your uterus has doubled in size, and you may start to notice a small baby bump. Hormonal changes might be causing mood swings, which are completely normal. You may notice your veins becoming more visible, especially on your breasts, due to increased blood volume. Some women find their hair and nails growing faster. Nasal congestion is common due to increased blood flow to mucous membranes.

Common Symptoms at Week 9

NauseaMood swingsVisible veinsNasal congestionFatigueBreast changes

Tips for Week 9

Eat iron-rich foods like lean red meat, spinach, and beans to support your increased blood volume.
Use a saline nasal spray to relieve pregnancy-related congestion.
Stay active with pregnancy-safe exercises like walking or swimming.
Take time for self-care and stress management — try meditation or deep breathing.

When to Call Your Doctor

Contact your healthcare provider for heavy bleeding, severe cramping, high fever, or signs of dehydration from excessive vomiting.

Frequently Asked Questions — Week 9

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