-
Period: to
Prenatal stage
from conception to birth. -
Period: to
Neonatal stage
birth through the second week -
Period: to
Infancy
2 weeks through the first birthday -
Period: to
Toddler Stage
12-36 months -
Period: to
Preschool Stage
3-6 years -
Period: to
School-Age Stage
6-12 years