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Trimester 1

8 Weeks Pregnant

During week 8, your baby is undergoing rapid organogenesis. Every day, millions of new cells are forming the foundations of the brain, heart, and limbs. They are safely tucked away in the amniotic sac, receiving all their nutrition through the developing umbilical cord.

8 min read Medically Reviewed Updated 2024-05-01
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Your baby is the size of a Raspberry
1.6 cm
Length
1 g
Weight
Week 1Week 13 - End of Trimester 1Week 27Week 42

Baby's Development This Week

During week 8, your baby is undergoing rapid organogenesis. Every day, millions of new cells are forming the foundations of the brain, heart, and limbs. They are safely tucked away in the amniotic sac, receiving all their nutrition through the developing umbilical cord.

  • All essential organs have begun forming.
  • Fingers and toes are now distinct (no longer webbed).
  • The embryo begins spontaneous movements, though too tiny to feel.
  • The retinas begin to develop pigment.
  • Taste buds are forming on the tongue.
  • The embryo is about 1.6cm — the size of a raspberry.

Your Symptoms at Week 8

You are still in the early stages of your journey at week 8. Your body is working overtime to produce the hormones needed to support the pregnancy, which can lead to symptoms like fatigue and nausea. It's important to prioritize rest and stay hydrated during this demanding time.

Morning sickness (peaking)
Try vitamin B6 (25mg 3x daily); ask your doctor about Unisom. (severe)
Fatigue
Go to bed earlier; short naps can help enormously. (severe)
Constipation
Increase fiber, drink more water, and stay active. (mild)
Breast changes
Breasts may feel fuller; consider a maternity bra. (moderate)
Mild headaches
Stay hydrated and rest; acetaminophen is safe if needed. (mild)

When to Call Your Doctor

  • Inability to keep any food or liquids down for 24+ hours
  • Heavy bleeding
  • Fever or chills
  • Sudden sharp pain in abdomen or shoulder

Week 8 Checklist

  • Attend your first prenatal appointment (essential)
  • Discuss first-trimester screening (NIPT, NT scan) (recommended)
  • Ask about foods to avoid and safe medications (essential)
  • Consider telling close family or friends (optional)

Frequently Asked Questions

Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider for personalized guidance about your pregnancy.