0-1 Month Baby Guide

According to the CDC, these are typical milestones for the first month:

Motor development

• Moves arms and legs in jerky, erratic motions
• Brings hands to face
• Head falls back if unsupported — always support the head and neck
• Strong reflexes: rooting, sucking, Moro (startle), palmar grasp
• Can briefly lift head during tummy time by end of month

Sensory and cognitive

• Focuses on faces 8-12 inches away (distance from breast to face)
• Prefers black-and-white or high-contrast patterns
• Recognizes caregiver's voice and smell
• Startles to loud sounds
• Cries to communicate needs (hunger, discomfort, fatigue)

Social and emotional

• Calms when picked up or hears caregiver's voice
• Prefers looking at faces over other shapes
• May have brief quiet alert periods

Breastfeeding

• 8-12 feedings per day (every 2-3 hours, including at night)
• Colostrum transitions to mature milk by days 3-5
• Feed on demand — watch for hunger cues (rooting, hand-to-mouth, fussiness)
• Each feeding typically lasts 10-20 minutes per side
• Expect 6+ wet diapers and 3-4 stools per day by end of first week

Formula feeding

• Newborns: 1-2 oz per feeding, every 3-4 hours
• By 1 month: 3-4 oz per feeding, 6-8 times per day
• Do not prop bottles or force baby to finish
• Follow formula preparation instructions exactly

Signs feeding is going well

• Steady weight gain after initial loss (regain birth weight by 10-14 days)
• 6+ wet diapers per day by day 5
• Baby seems satisfied after feeds
• You can hear swallowing during breastfeeding

• Total sleep: 14-17 hours per day (no day/night distinction yet)
• Sleep stretches: typically 2-4 hours at a time
• Longest sleep stretch: often 3-4 hours
• Expect frequent nighttime waking for feeds — this is biologically normal

Safe sleep (AAP guidelines)

• Always place on back to sleep (reduces SIDS risk by 50%)
• Use a firm, flat surface with a fitted sheet — no soft bedding
• Room-share (not bed-share) for at least the first 6 months
• No blankets, pillows, bumpers, or stuffed animals in the sleep space
• Keep room temperature comfortable (68-72F / 20-22C)
• Offer a pacifier at sleep time (after breastfeeding is established)

• Always support the head and neck when holding baby
• Never leave baby unattended on elevated surfaces
• Use a rear-facing car seat from the first ride home — harness snug, chest clip at armpit level
• Keep small objects, plastic bags, and cords away from baby
• No honey until age 1 (botulism risk)
• Wash hands before handling baby; limit visitors if baby is premature or immunocompromised
• Avoid direct sun exposure — newborn skin burns easily
• Never shake a baby — if frustrated, place baby safely in crib and take a break

• Jaundice: Yellow skin/eyes from bilirubin buildup. Mild jaundice is common. Call doctor if spreading to arms/legs or baby is hard to wake
• Spitting up: Normal in small amounts after feeds. Concerning if forceful, green, or baby is not gaining weight
• Crying: Peaks at 6-8 weeks. Colic (3+ hours of crying, 3+ days per week) affects ~20% of babies
• Diaper rash: Keep area clean and dry, use barrier cream. Call doctor if it blisters or does not improve in 3 days
• Cradle cap: Scaly, yellowish patches on scalp. Harmless and clears on its own
• Sneezing and hiccups: Very common and rarely indicate illness in newborns

The AAP well-child visit schedule for this period:

• 3-5 days after birth: Weight check, feeding assessment, jaundice screening, umbilical cord check
• 1 month: Growth measurements, physical exam, developmental screening, feeding discussion, Hepatitis B vaccine (2nd dose if not given earlier)

Bring questions written down — it is easy to forget in the moment.