Child Individual Timeline By vbelcher644 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 last for two weeks Period: Oct 17, 2019 to Oct 1, 2020 Infancy Stage two weeks though the first birthday Period: Oct 2, 2020 to Oct 1, 2022 Toddler stage 12-36 weeks Period: Oct 2, 2022 to Oct 3, 2025 Preschool Stage 3 to 6 years old Period: Oct 4, 2025 to Oct 5, 2031 school age 6-12 years