Week 29

Your Baby at Week 29

Your baby is the size of a butternut squash at 29 weeks. Muscles and lungs are maturing rapidly, and all bones are formed though still soft and flexible.

Key milestone: The baby's muscles and lungs mature rapidly. The bones are fully developed but still soft.

Your Body at Week 29

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 29 is the size of a Butternut squash, measuring about 10.4 in (26.7 cm) and weighing roughly 2.5 lb (1.15 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

Your baby is the size of a butternut squash at 29 weeks. Muscles and lungs are maturing rapidly, and all bones are formed though still soft and flexible. The key milestone this week is that the baby's muscles and lungs mature rapidly. the bones are fully developed but still soft.

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.