Child Individual Timeline By mbotley350 Period: Jan 1, 2019 to Oct 1, 2019 Prenatal stage Lasts from conception to birth. Period: Oct 2, 2019 to Oct 16, 2019 Neonatal Stage Birth through second week Period: Oct 16, 2019 to Oct 1, 2020 Infancy Stage Two weeks to first birthday Period: Oct 1, 2020 to Oct 1, 2023 Toddler Stage 12-36 months Period: Oct 1, 2023 to Oct 1, 2026 Preschool Stage 3 years old to 6th Birthday Period: Oct 1, 2026 to Oct 1, 2032 School-age Stage 6 years old to 12 years old