Trimester 2
Week 23
About the size of
a grapefruit
~28.9 cm~501 g
Averages only: a scan is the only way to know your baby’s size.
Your baby this week
Lungs are producing surfactant, the substance that will let air sacs stay open after birth. Skin is still translucent.
What you may feel
You may notice swelling in your hands and ankles. Sudden or severe swelling with headache needs urgent review.
This week, try
Learn the warning signs of preeclampsia now: severe headache, vision changes, upper abdominal pain, sudden swelling.
Weeks are counted from the first day of your last period, as your care team counts them. Written by The Childhood Journal’s team from standard prenatal references. Not yet reviewed by a clinician: our scientific board is being formed. General information, never an assessment of your pregnancy.