Before and early in pregnancy
- The US Preventive Services Task Force advises a daily folic acid supplement of 0.4 to 0.8 mg, starting at least 1 month before conception.[1] Positive pregnancy test: your first steps
- The Office on Women's Health (OWH) says home test results are more reliable about a week after a missed period.[2] How soon can you take a pregnancy test?
- ACOG says the due date is, by convention, 280 days after the first day of the last period.[3] Due date calculator
- OWH says to call a doctor after a positive test.[2] Positive pregnancy test: your first steps
- The American College of Obstetricians and Gynecologists (ACOG) says to start prenatal care in the first trimester, ideally before 10 weeks after your last period.[4] Your first prenatal appointment: what to expect
- The World Health Organization (WHO) recommends a first prenatal contact within the first 12 weeks.[5] Your first prenatal appointment: what to expect
During pregnancy
- OWH lists the first trimester screen at weeks 11 to 14.[6] First trimester: weeks, symptoms and tests
- MedlinePlus lists an anatomy ultrasound around week 20.[7] Second trimester: weeks, symptoms and tests
- USPSTF advises gestational diabetes screening at 24 weeks or later.[8] Prenatal tests by week: what's offered and when
- OWH lists the group B strep test at weeks 36 to 37.[6] Third trimester: weeks, symptoms and tests
- MedlinePlus says to discuss pain-relief options with your provider before the due date.[9] Third trimester: weeks, symptoms and tests
- CDC lists urgent warning signs to watch for during pregnancy and in the year after birth.[10] Pregnancy warning signs: when to call or get help
Getting ready for the baby
- The NHS says to pack your hospital bag at least 3 weeks before your due date.[11] Third trimester: weeks, symptoms and tests
- Safe to Sleep advises a firm, flat, level sleep surface with only a fitted sheet.[12] Sleep and soothing
- NHTSA says babies under 1 should always ride rear-facing in a car seat.[13]
After birth
- OWH says the postpartum checkup is about 6 weeks after birth, while ACOG recommends a visit within the first 3 weeks and a full checkup by 12 weeks.[14][15]
- The National Institute of Mental Health (NIMH) says mood changes that are severe or last more than 2 weeks may signal postpartum depression.[16] Baby blues vs. postpartum depression: signs and help
- CDC says some urgent maternal warning signs can happen up to a year after delivery.[10] Pregnancy warning signs: when to call or get help
Baby's first year
- Safe to Sleep advises placing babies on their back for every sleep until age 1.[12]
- CDC lists milestones by 2 months, such as smiling when you talk or smile.[17] Early milestones
- The American Academy of Pediatrics (AAP) says the first dental visit should come after the first tooth appears and by the first birthday.[18]
Toddler, 1 to 3
Preschooler, 3 to 5
- WHO advises at least 180 minutes of activity a day for ages 3 to 4, including at least 60 minutes of moderate-to-vigorous activity.[20]
- CDC says that from age 3, families with concerns can call their local public elementary school and ask for a preschool special education evaluation.[22] Early intervention
- CDC lists milestones by 5 years, such as counting to 10 and writing some letters in their name.[23]
Kindergarten
- The AAP says most US students start kindergarten at age 5, and requirements vary by state.[24]
- Head Start describes five areas of school readiness: approaches to learning; social and emotional development; language and literacy; cognition; and perceptual, motor and physical development.[25] Kindergarten readiness checklist
Free from UpOnly Learning. Written for families of every faith. No outside ads and no affiliate links. Every fact on this page comes from the sources listed below. How we source and review these pages
Updated 2026-10-24: first published.
Sources
All sources were opened and checked on the date shown.
- US Preventive Services Task Force. Folic Acid Supplementation to Prevent Neural Tube Defects: Preventive Medication. Checked October 24, 2026.
- Office on Women's Health (HHS). Knowing if you are pregnant. Checked October 24, 2026.
- American College of Obstetricians and Gynecologists (with AIUM and SMFM). Methods for Estimating the Due Date (Committee Opinion No. 700; reaffirmed 2025). Checked October 24, 2026.
- American College of Obstetricians and Gynecologists. Prenatal Care. Checked October 24, 2026.
- World Health Organization. New guidelines on antenatal care for a positive pregnancy experience (news release, Nov 7, 2016). Checked October 24, 2026.
- Office on Women's Health (HHS). Prenatal care and tests. Checked October 24, 2026.
- MedlinePlus (National Library of Medicine). Prenatal care in your second trimester. Checked October 24, 2026.
- US Preventive Services Task Force. Gestational Diabetes: Screening. Checked October 24, 2026.
- MedlinePlus (National Library of Medicine). Childbirth. Checked October 24, 2026.
- Centers for Disease Control and Prevention (HEAR HER campaign). Urgent Maternal Warning Signs and Symptoms. Checked October 24, 2026.
- NHS (United Kingdom). Hospital bag checklist – what to pack for you and your baby. Checked October 24, 2026.
- NICHD Safe to Sleep campaign (NIH). Ways to Reduce Baby's Risk. Checked October 24, 2026.
- National Highway Traffic Safety Administration. Car Seats and Booster Seats. Checked October 24, 2026.
- Office on Women's Health (HHS). Recovering from birth. Checked October 24, 2026.
- American College of Obstetricians and Gynecologists. Having a Baby. Checked October 24, 2026.
- National Institute of Mental Health (NIH). Perinatal Depression. Checked October 24, 2026.
- Centers for Disease Control and Prevention. Milestones by 2 Months. Checked October 24, 2026.
- American Academy of Pediatrics (HealthyChildren.org). Baby's First Tooth: 7 Facts Parents Should Know. Checked October 24, 2026.
- Centers for Disease Control and Prevention. Cow's Milk and Milk Alternatives. Checked October 24, 2026.
- World Health Organization. To grow up healthy, children need to sit less and play more (news release, Apr 24, 2019). Checked October 24, 2026.
- Centers for Disease Control and Prevention. CDC's Developmental Milestones. Checked October 24, 2026.
- Centers for Disease Control and Prevention (Learn the Signs. Act Early.). Early Intervention. Checked October 24, 2026.
- Centers for Disease Control and Prevention. Milestones by 5 Years. Checked October 24, 2026.
- American Academy of Pediatrics (HealthyChildren.org). Is Your Preschooler Ready for Kindergarten?. Checked October 24, 2026.
- Office of Head Start (HHS). Head Start Approach to School Readiness – Overview. Checked October 24, 2026.