Week 23 of pregnancy — 2nd trimester. Baby is the size of a grapefruit 🍊, approximately 28.9cm long and weighing 501g. Hearing more acute — responds to familiar voices. Lungs developing. 57% of the 40-week journey complete, 17 weeks remaining.
PREGNANCY WEEK 23 — 2nd TRIMESTER
🍊
grapefruit
baby is about the size of a grapefruit
WEEK
23
of 40
LENGTH
28.9cm
crown to rump
WEIGHT
501 g
approximate
17 weeks remaining · Hearing more acute — responds to familiar voices. Lungs developing.
WEEK 23 — BABY'S DEVELOPMENT
2ND TRIMESTER · Weeks 13–26
Hearing more acute — responds to familiar voices. Lungs developing.
HOW YOU MAY FEEL
Baby very active. Glucose tolerance test (gestational diabetes) approaching.
WEEK 23 KEY FACTS
Gestational age
Week 23
Trimester
2nd (T2)
Baby length
28.9cm
Baby weight
501 g
Progress
57% complete
Weeks left
17 weeks
What happens at week 23 of pregnancy?
At week 23 of pregnancy (2nd trimester):\n\nBaby development: Hearing more acute — responds to familiar voices. Lungs developing.\n\nBaby size: grapefruit 🍊\nLength: approximately 28.9cm (crown to rump)\nWeight: approximately 501g\n\nPregnancy progress: 57% complete (17 weeks remaining)\n\nGestational age is counted from the first day of your last menstrual period (LMP), not from conception. Week 23 begins on day 155 and ends on day 161 from your LMP.
How Many Weeks Pregnant Am I Calculator
Calculate instantly →
Pregnancy Month-by-Month Calculator
Calculate instantly →
Pregnancy Week-by-Week Calculator
Calculate instantly →
Conception Date Calculator
Calculate instantly →
Ovulation Calculator
Calculate instantly →
Pregnancy Due Date Calculator
Calculate instantly →
Pregnancy Week 12
Calculate instantly →
Pregnancy Week 10
Calculate instantly →
Pregnancy Week 5
Calculate instantly →
Pregnancy Week 9
Calculate instantly →
Pregnancy Week 4
Calculate instantly →
Pregnancy Week 11
Calculate instantly →
Pregnancy Week 8
Calculate instantly →
Pregnancy Week 13
Calculate instantly →
Pregnancy Week 16
Calculate instantly →
Pregnancy Week 7
Calculate instantly →
Pregnancy Week 15
Calculate instantly →
Pregnancy Week 17
Calculate instantly →
Pregnancy Week 14
Calculate instantly →
Pregnancy Week 6
Calculate instantly →
Pregnancy week 23 · 2nd trimester · Baby size: grapefruit 🍊 · 28.9cm · 501 g · Sources: ACOG, WHO fetal growth data