Ultimate Newborn Guide: Caring for Your Baby from Day 0 to 1 Month
Welcoming a newborn into your family brings joy, wonder, and yes—plenty of questions. Those first 28 days (the official “newborn period”) are filled with rapid changes as your baby adjusts to life outside the womb. This newborn guide walks you through everything you need to know from Day 0 to 1 Month, including growth patterns, feeding basics, sleep schedules, and developmental milestones. Whether you’re preparing for your baby’s arrival or already navigating those precious first weeks, we’ve gathered expert advice to help you care for your little one with confidence.
What Is a Newborn? Understanding the First Month
A newborn is officially defined as a baby from birth to 28 days of age. During this period, your baby undergoes tremendous changes as they adapt to life outside the womb. The newborn stage is characterized by rapid development, frequent feeding, and irregular sleep patterns.
While the technical definition covers just the first four weeks, many parents and healthcare providers extend the “newborn phase” to include the first two to three months. This period is often called the “fourth trimester,” acknowledging that babies are still developing many of the basic functions they need for life outside the womb.
Key Fact: The newborn stage officially lasts from birth to 28 days, though many consider the first three months as the extended newborn period or “fourth trimester.”
Week-by-Week Growth & Development
Your baby will change dramatically during their first month. Here’s what to expect each week:
Week 1: The Beginning
During the first week, your baby is recovering from birth and adjusting to the outside world. Most babies lose 5-10% of their birth weight, which is completely normal. They’ll typically regain this weight by the two-week mark.
Your baby’s umbilical cord stump requires special care during this time. Keep it clean and dry, and give sponge baths until it falls off (usually within 1-2 weeks).
Week 1 Highlights:
- Weight loss of 5-10% is normal
- Umbilical cord care is essential
- Primitive reflexes are strong (rooting, startle)
- Sleep is irregular and frequent (16-17 hours)
- Feeding every 2-3 hours
Week 2: First Growth Spurt
Week 2 Highlights:
- Beginning to regain birth weight
- First growth spurt may occur
- More alert periods emerging
- Feeding frequency may increase
- May begin to focus on faces
Many babies experience their first growth spurt around 7-10 days. You might notice your baby wanting to feed more frequently, sometimes every 1-2 hours. This is normal and helps stimulate milk production if you’re breastfeeding.
Your baby may also have more wakeful periods and begin to focus briefly on faces, particularly yours. They’re drawn to high-contrast patterns and can see objects about 8-12 inches from their face.
Week 3: Increasing Alertness
By week three, your baby is becoming more alert and may stay awake for longer periods. They’re beginning to develop more control over their movements, though most actions are still reflexive.
You might notice your baby responding more to your voice and possibly making early attempts at communication through cooing or gurgling sounds. Some babies may show early social smiles, though true social smiling typically develops around 6-8 weeks.
Week 3 Highlights:
- Longer alert periods
- More responsive to voices
- Early attempts at communication
- Better head control when held upright
- May show early reflexive smiles
Week 4: Building Strength
Week 4 Highlights:
- Can briefly lift head during tummy time
- Improved visual tracking of objects
- More predictable feeding patterns
- May turn head toward familiar sounds
- Weight gain of 5-7 ounces this week
By the end of the first month, your baby has made remarkable progress. During tummy time, they may be able to briefly lift their head. Their neck muscles are getting stronger, allowing them to have better head control when held upright.
Visual tracking improves, and your baby may follow moving objects with their eyes. They’re also likely to turn their head toward familiar sounds, especially your voice. By now, most babies have surpassed their birth weight and are gaining about 5-7 ounces per week.
Newborn Sleep Patterns & Tips
Newborn sleep is unlike adult sleep in almost every way. Babies aged 0 to 1 month typically sleep 14-17 hours per day, but in short stretches of 2-4 hours. This fragmented sleep pattern is normal and necessary for frequent feeding.
Age | Total Sleep (24 hrs) | Daytime Sleep | Nighttime Sleep | Awake Windows |
0-1 week | 16-17 hours | 8-9 hours (4-5 naps) | 8 hours (broken) | 30-60 minutes |
1-2 weeks | 15-16 hours | 7-8 hours (4-5 naps) | 8-9 hours (broken) | 45-60 minutes |
2-4 weeks | 14-16 hours | 6-7 hours (4 naps) | 8-9 hours (broken) | 45-75 minutes |
Safe Sleep Tips for Newborns
Following safe sleep guidelines is crucial for reducing the risk of Sudden Infant Death Syndrome (SIDS) and other sleep-related infant deaths:
- Back to sleep: Always place your baby on their back for every sleep period
- Firm surface: Use a firm, flat sleep surface covered by a fitted sheet
- Empty crib: No pillows, blankets, bumpers, or toys in the sleep area
- Room sharing: Keep baby in your room (but not in your bed) for at least the first 6 months
- Temperature: Dress baby in no more than one layer more than you would wear
“The safest place for your baby to sleep is on their back, on a firm, flat surface, in a crib or bassinet in your room, with nothing else in their sleep space.”
Newborn Feeding Guide (0-1 Month)
Feeding is one of your newborn’s primary activities during the first month. Whether you’re breastfeeding or formula-feeding, your baby needs frequent nourishment to support their rapid growth.
Breastfeeding Basics
- Frequency: 8-12 times per 24 hours
- Duration: 10-30 minutes per feeding
- Signs of good feeding: 6-8 wet diapers daily, regular weight gain, content after feeding
- Positioning: Ensure proper latch with baby’s mouth covering areola, not just nipple
Breastfed babies often cluster feed (feed very frequently over a few hours) during growth spurts. This is normal and helps increase your milk supply.
Formula Feeding Guidelines
- Amount: 1.5-3 oz per feeding
- Frequency: Every 2-3 hours, 8-10 feedings per day
- Preparation: Always follow manufacturer’s instructions exactly
- Storage: Prepared formula can be refrigerated for 24 hours
Formula-fed babies typically eat less frequently than breastfed babies because formula takes longer to digest. By the end of the first month, they may take 3-4 ounces per feeding.
How to Burp Your Newborn
Burping helps release air bubbles that can cause discomfort. Try these positions:
- Over the shoulder: Hold baby upright with their head on your shoulder, supporting their bottom, and gently pat their back
- Sitting on lap: Sit baby on your lap, support their chest and head with one hand, and pat their back with the other
- Across lap: Lay baby face down across your lap, supporting their head, and gently pat their back
Burp your baby during natural pauses in feeding and after each feeding session. Some babies need more frequent burping than others.
Newborn Diaper & Elimination Guide
Your newborn’s diapers provide valuable information about their health and nutrition. In the first month, expect to change 8-12 diapers per day.
Newborn Poop Color Chart
Color | Description | When It Occurs | What It Means |
Black/Greenish-Black | Sticky, tar-like (meconium) | First 1-3 days | Normal first stool |
Greenish-Brown | Transitional stool | Days 3-4 | Transition from meconium |
Yellow/Mustard (breastfed) | Seedy, loose texture | Day 4 onward | Normal breastfed stool |
Tan/Yellow (formula-fed) | Firmer, peanut butter-like | Day 4 onward | Normal formula-fed stool |
When to Call the Doctor: Contact your pediatrician if you notice white, red, or black stools (after day 3), or if your baby has diarrhea, constipation, or hasn’t had a bowel movement for more than 3 days after regular patterns have been established.
Diaper Change Essentials
What You’ll Need:
- Clean diapers
- Gentle wipes or warm water and cotton
- Changing pad or towel
- Diaper cream for rash prevention
- Clean clothes if needed
Diaper Change Steps:
- Wash your hands before starting
- Place baby on a clean, flat surface
- Open the clean diaper and place it under baby before removing the soiled one
- Clean from front to back (especially for girls)
- Allow skin to dry completely before applying cream and closing the new diaper
Baby Reflexes & Sensory Development
Newborns are born with several reflexes that help them survive and interact with their environment. These automatic responses disappear as the brain develops and voluntary control increases.
Key Newborn Reflexes
Rooting Reflex
When you stroke your baby’s cheek, they turn toward that side and open their mouth, helping them find the breast or bottle.
Disappears: Around 4 months
Moro (Startle) Reflex
When startled, your baby throws back their head, extends arms and legs, then pulls limbs back in. This is why swaddling helps many babies sleep better.
Disappears: Around 2-3 months
Grasp Reflex
Your baby will grasp your finger when you place it in their palm. This reflex is surprisingly strong in newborns.
Disappears: Around 5-6 months
Newborn Vision Development
At birth, babies can only see objects 8-12 inches from their face—approximately the distance to a parent’s face during feeding. Their vision is blurry, and they see best in black, white, and shades of gray.
By the end of the first month, your baby may begin to focus with both eyes and follow moving objects. They’re particularly drawn to faces and high-contrast patterns.
Stimulate your baby’s visual development with high-contrast black and white patterns. Simple face-like designs, checkerboards, and spirals are particularly engaging for newborns.
Newborn Daily Routine (0-1 Month)
While newborns don’t follow strict schedules, establishing gentle routines can help both you and your baby. Here’s a sample framework for a day with your 0-1 month old:
Time | Activity | Notes |
6:00-7:00 AM | Wake, feed, diaper change | Keep lights dim for early morning feeds |
7:00-8:30 AM | Short awake time, then nap | Brief tummy time if alert |
8:30-9:00 AM | Feed, diaper change | Burp well after feeding |
9:00-10:30 AM | Awake time, then nap | Talk, sing, or read to baby |
Throughout day | Repeat feed-awake-sleep cycle | Expect 7-9 cycles in 24 hours |
7:00-8:00 PM | Begin bedtime routine | Bath (2-3 times/week), gentle massage, feed, swaddle |
Overnight | Feed every 2-3 hours | Keep interactions minimal, lights low |
Simple Activities for 0-1 Month Babies
Tummy Time
Start with 1-5 minutes, 2-3 times daily. Place baby on a clean, flat surface and get down at their eye level. Use a rolled towel under their chest if needed.
Face Time
Hold your baby 8-12 inches from your face and make expressions. This distance is perfect for their developing vision and helps with bonding.
Gentle Movement
Hold your baby securely and gently move their arms and legs in a bicycle motion. This helps with body awareness and muscle development.
Newborn Health & Safety Essentials
How to Bathe Your Newborn
- Gather all supplies before starting
- Fill the basin with 2-3 inches of warm water (100°F/38°C)
- Support baby’s head and shoulders with one arm
- Wash from clean to dirty areas (face first, diaper area last)
- Keep baby warm throughout and dry thoroughly after
Until the umbilical cord stump falls off, stick to sponge baths. Bathe your newborn 2-3 times per week—more frequent bathing can dry their sensitive skin.
How to Hold Your Newborn
Cradle Hold
Support baby’s head in the crook of your arm with their body along your forearm. Your other arm can wrap around or under baby for additional support.
Shoulder Hold
Hold baby upright against your chest and shoulder, supporting their bottom with one hand and their head and neck with the other.
Football Hold
Hold baby along your forearm with their head in your hand and their body tucked under your arm. Great for feeding and for babies who prefer to be slightly upright.
When to Call the Doctor
- Fever (rectal temperature of 100.4°F/38°C or higher)
- Difficulty breathing or blue lips
- Refusal to feed for multiple sessions
- Excessive sleepiness or difficulty waking
- Persistent crying that cannot be soothed
- Fewer wet diapers than expected (less than 6 per day after day 5)
- Yellow skin or eyes (jaundice) that worsens or spreads
First Month Milestones & Growth
By the end of the first month, your baby will have made remarkable progress. Here are the key milestones to look for:
Physical Milestones
- Regains or exceeds birth weight
- Grows about 1-1.5 inches in length
- Head circumference increases by about 0.5 inches
- Can briefly lift head during tummy time
- Makes smoother movements with arms and legs
- May turn head from side to side when lying on back
Cognitive & Social Milestones
- Focuses on faces and high-contrast objects
- Follows objects briefly with eyes
- Recognizes parents’ voices
- Responds to loud sounds by startling
- May show early reflexive smiles
- Makes small sounds other than crying
Typical Weight Gain
After the initial weight loss in the first week, expect your baby to gain about 5-7 ounces (140-200 grams) per week during the first month. By one month of age, most babies have surpassed their birth weight by at least a few ounces.
“Remember that every baby develops at their own pace. These milestones are general guidelines, not strict rules. If you have concerns about your baby’s development, discuss them with your pediatrician.”
Conclusion
The first month with your newborn can feel overwhelming, but with the right support and a clear newborn care guide, you’ll gain the confidence to meet your baby’s needs. Take it one day at a time, trust your instincts, and cherish every moment of this incredible journey.