First Trimester

Week 3 of Pregnancy

Your baby's heart will start beating in just a few weeks - it's a remarkable timeline!

🌾

Size of a

Sesame Seed

0.9mm

Length

0.9mm

Weight

negligible

Highlight

Your baby's heart will start beating in just a few weeks - it's a remarkable timeline!

👶

Baby's Development

  • •The embryo is now three distinct layers: ectoderm, mesoderm, and endoderm.
  • •These layers will become all of your baby's organs, bones, muscles and skin.
  • •The neural tube - which becomes the brain and spine - is starting to form.
🤰

How You Might Feel

  • •Morning sickness may begin (it can happen any time of day).
  • •Heightened sense of smell is common.
  • •Increased urination as hormones rise.
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Tips This Week

  • •Keep taking folic acid - it's critical for neural tube development.
  • •Stay hydrated to help with nausea.
  • •Avoid raw fish, unpasteurised cheese and liver.