Child Individual Timeline By lfannon518 Period: Jan 1, 2019 to Oct 1, 2019 Prenatal stage from conception to birth. Period: Oct 1, 2019 to Oct 13, 2019 Neonatal stage birth through the second week Period: Oct 17, 2019 to Oct 1, 2020 Infancy 2 weeks through the first birthday Period: Oct 1, 2020 to Oct 1, 2021 Toddler Stage 12-36 months Period: Oct 1, 2021 to Oct 1, 2024 Preschool Stage 3-6 years Period: Oct 1, 2024 to Oct 1, 2031 School-Age Stage 6-12 years