What to expect at stages of early childhood English Birth 2 months 4-6 months 9-12 months 12-18 months 18-24 months 24-36 months 3 years 4 years 5 years Espanol Su nacimiento 2 meses 4-6 meses 9-12 meses 12-18 meses 18-24 meses 24-36 meses 3 anos 4 anos 5 anos