All Pregnancy Weeks
Second TrimesterWeek 20 of 40

Pregnancy Week 20: The Anatomy Audit

Updated

Your baby this week
About the size of a banana
~10 in · ~10.6

Medical Disclaimer: Content is for informational purposes only and does not replace professional medical advice. Always consult your healthcare provider.

How your baby is growing this week

Banana size — about 10 inches, now that babies are measured crown to heel instead of crown to rump (that is why the length jumps from ~6 inches last month). Weighs ~10 oz. Swallowing amniotic fluid daily; the sex is clearly visible on ultrasound.

What your partner is going through

The halfway mark. Her belly button may flatten or pop out, and a dark vertical line — linea nigra — can run down the belly as pregnancy hormones drive pigmentation. She can likely feel regular kicks now, and the bump is unmistakable.

What to focus on this week, dad

  • 01THE SCAN: Do not miss this appointment — it checks heart, brain, spine, organs
  • 02Bring a notebook — write down everything the tech says
+1 more focus item in the full briefing for week 20 — Start free

Connect with your partner

Take a Halfway There photo. You're at the midpoint — mark the occasion together.

Source: RadiologyInfo

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