Week 37
Your baby is the size of a Swiss chard
Baby Size
Swiss chard
Length
13.6 in (34.5 cm)
Weight
5.2 lb (2.35 kg)
Trimester
Third Trimester
Your Baby at Week 37
Congratulations — your baby is now considered early-term! At the size of Swiss chard, your baby's brain and lungs are still maturing, but they're ready to meet the world.
Key milestone: Your baby is now considered early-term! The brain and lungs continue maturing. The baby is practicing breathing, sucking, and swallowing.
Your Symptoms
Possible loss of mucus plug (bloody show). Increased nesting energy. Anxiety and excitement.
Tip for This Week
Keep your phone charged and your hospital bag by the door. You're in the final stretch!
Your Body at Week 37
In the third trimester, your growing uterus presses against your diaphragm, stomach, and bladder. Shortness of breath, heartburn, and frequent urination are common. Your body is producing relaxin, a hormone that loosens joints and ligaments to prepare for birth.
Your baby at week 37 is the size of a Swiss chard, measuring about 13.6 in (34.5 cm) and weighing roughly 5.2 lb (2.35 kg). Every kick, roll, and hiccup is a sign that your baby is growing strong. Soon you'll hold them in your arms.
Your Baby's Development This Week
Congratulations — your baby is now considered early-term! At the size of Swiss chard, your baby's brain and lungs are still maturing, but they're ready to meet the world. The key milestone this week is that your baby is now considered early-term! the brain and lungs continue maturing. the baby is practicing breathing, sucking, and swallowing.
The third trimester is about preparation — your baby is practicing breathing, sucking, and swallowing for life outside the womb. Each week of this stage significantly improves their chances of a healthy start. The countdown to meeting your baby has begun.
This week's voice theme
“Early-term and eager — ready or not, here I come.”
Imagine hearing this every morning — a voice note from your baby that evolves week by week.
Hear your baby's voice →Frequently Asked Questions
What is the mucus plug?
A thick mucus seal that protects the cervix during pregnancy. Losing it (bloody show) can be a sign of early labor.
What does early-term mean?
Babies born at 37-38 weeks are considered early-term. While healthy, full-term (39-40 weeks) is ideal.