WEEK 9 / 40 · Trimester 1

Pregnancy Week 9

🫒 Size of a Olive

About 31 weeks until birth

Pregnancy week 9 baby size: Olive
2.3 cmLENGTH
2 gWEIGHT
🫒OLIVE

There's a little acrobat in there! Muscles are growing stronger rapidly.

What's Happening With Your Baby This Week?

  • The eyelids have closed and will stay shut until around weeks 26-28; they protect the eyes.
  • Tooth buds have formed inside the jawbones; the foundations of baby teeth are being laid.
  • Muscle structure is developing rapidly and involuntary movements are happening; you can't feel them yet, but soon!
  • External genital organs are beginning to form, but gender cannot yet be distinguished on ultrasound.
  • Organs like the pancreas, gallbladder, and spleen are beginning to become functional.

This Week's Tips for Mom

  • Omega-3 fatty acids (salmon, sardines, walnuts) can be very valuable for your baby's brain and eye development.
  • As your skin starts to stretch, it's a good time to begin moisturizing with almond oil or cocoa butter.
  • You might want to have your thyroid hormones checked in blood tests; thyroid changes during pregnancy can be common.
  • Daily 30-minute gentle exercise (walking, swimming) can help improve circulation and mood.
  • You might experience nasal congestion; pregnancy rhinitis is normal — saline solution is safer than nasal spray.
Tip of the day: When eating fish, it's best to choose small fish with low mercury content (sardines, anchovies, salmon). It's important to limit large fish like swordfish and tuna; their high mercury content can negatively affect baby's brain development.
This content is for informational purposes only and is not a substitute for medical advice. Length and weight values are averages; every baby grows at their own pace.

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