Foetal Wellbeing Scans

(36 – 40 Weeks)
3rd trimester pregnancy scans involve the assessment of foetal growth, weight, activity, blood flow etc and overall foetal well-being.


The Wellbeing scan or Third Trimester Scan is used to assess foetal growth and weight, amount of amniotic fluid that is present, blood flow patterns in the cord, placental location and overall foetal wellbeing. It assesses the wellbeing of the baby by observing foetal body movement, breathing movement and tone, the amniotic fluid volume and heartbeat.


Foetal well-being scans will generally be performed between 36 and 40 weeks of your pregnancy. Nearly there!

What to expect

  • Inform the sonographer if there are any concerns or clinical changes.
  • Very loose clothes as we scan very low down.
  • Bring along your very big belly ☺

Interesting facts

  • The foetus is full term and will development is complete.
  • It weighs approximately 2.5-3.5kg and about 45cm ling.
  • The baby has about 100 billion nerve cells.
  • The head and abdominal circumference is almost the same.
  • Most babies will engage the head into the pelvis.