Bones strengthen but remain flexible for birth. The fetus gains about 1/2 pound this week. Eat calcium-rich foods.
Pregnancy due date calculator
Week 3 - Germ Layer Formation
Week 23 - Skin Thins
Week 32 - Nail Growth
Week 26 - Eye Opening
Week 22 - Lung Maturation
Week 24 - Viability Threshold
Week 40 - Ready for Birth