How Long Does the Newborn Stage Last? (+ Tips for New Parents)

Your baby’s newborn stage is a whirlwind of emotions, sleepless nights, awe, and precious family moments. But how long does the newborn stage last? 

While there's no definitive answer to this question for your individual baby, most experts consider the newborn stage to be the first 2-3 months of a baby's life. However, some define it as the first 28 days, while others extend it up to 3-4 months! Regardless of the exact timeframe, this period is crucial for both parents and baby.

To get an idea of what the newborn phase involves, how to cope with early challenges, and ways to best support your little one, keep reading.

What Defines the Newborn Stage?

The newborn stage is characterized by rapid growth and development during a baby’s first months of life. According to the World Health Organization, a newborn infant is a child who is 0 to 28 days old. During their first month of life, newborns are most fragile and at risk of serious harm or death if neglected. 

That said, many cultures today loosely refer to infants as “newborns” until up to 3 months old. During this time, babies are still adjusting to life outside the womb. They go through many physiological changes and important milestones that set them up for lifelong growth. 

Typical characteristics of newborns involve:

  • Frequent feeding every 2-3 hours

  • Sleeping 12-18 hours per day

  • Rapid growth and weight gain

  • Development of basic reflexes like rooting and sucking

  • Limited interactions, primarily focused on basic needs

  • Development of respiratory and circulatory systems

  • Digestive development

  • Regulating body temperature

  • Establishing early bonding with parents

Newborns also have distinct physical characteristics, including soft skin, fine hair (called “lanugo”), and a large head in proportion to their body.

Emotional Rollercoaster for Parents

For new parents, the newborn stage can be an emotional ride! It's normal to feel a mix of joy, exhaustion, frustration, and even self-doubt. It's okay to experience a range of emotions during this time. 

Here are some tips to navigate this emotional journey:

  1. Practice self-care: Prioritize rest when you can.

  2. Accept help: Don't hesitate to lean on family and friends.

  3. Connect with other parents: Sharing experiences can be comforting.

  4. Be patient with yourself: You're learning and growing alongside your baby.

If you need extra support or have questions about your baby’s newborn phase, talk to a neonatal specialist or pediatrician. 

Developmental Milestones in the Newborn Phase

During the newborn stage, babies achieve several important milestones! These include: 

  • Rooting and sucking reflexes: These innate reflexes help with feeding, causing the baby to latch onto their mother’s breast and drink milk.

  • Moro reflex: This reflex is a startle response the baby feels when feeling in danger or unsupported.

  • Grasp reflex: Babies instinctively grasp objects placed in their palms.

  • First smiles: Infants usually begin to smile around 6-8 weeks.

  • Improved head control: Babies gradually develop the muscles to hold their head up over the first few months.

Care Practices and Activities for Parents of Newborns 

Caring for a newborn involves several key practices. Unless you’ve taken some parenting classes or read books on parenthood, being a new parent involves a lot of instinct and guesswork! 

Here are some of the most important activities you’ll be doing with your newborn as they develop in their first few months of life.

  • Feeding: Whether breastfeeding or bottle-feeding, newborns need to eat every 2-3 hours.

  • Diapering: Expect frequent diaper changes—up to 8-10 times a day!

  • Sleeping: Create a safe sleep environment and place the baby on their back. Do not use blankets or pillows in the crib—these risk suffocation. Use a swaddle or sleep wrap.

  • Bonding: Skin-to-skin contact and responsive care are crucial as your baby’s brain develops emotional connections to caregivers.

  • Tummy time: Start with short, supervised sessions to strengthen neck muscles.


It’s important to learn about what’s normal and abnormal during newborn development so that you make educated decisions about your baby’s health. For example, a minor symptom can also be confused with a developmental red flag.

Supporting Your Family During Baby’s Newborn Phase

Supporting both your baby and the rest of the family is crucial, but challenging. Consider these tips.

  1. Create a support network. Don't hesitate to ask for help from family and friends.

  2. Prioritize rest. Sleep when the baby sleeps to catch up on rest.

  3. Attend check-ups. Regular pediatric visits ensure the baby's health and development.

  4. Join parent groups. Connecting with other new parents can provide valuable support and advice.

  5. Practice self-care. Take short breaks when possible to recharge.

Signs Your Baby is Growing Out of the Newborn Phase

As your baby transitions out of the newborn stage, you may notice several exciting changes. 

More Regular Sleep Patterns

One of the first signs of your baby outgrowing the newborn phase is longer stretches of sleep at night. Take a deep breath—both you and your baby can finally enjoy more restful nights.

Increased Alertness

You might observe your baby having more awake time during the day, becoming increasingly curious and interactive.

Social Smiles

Around 6-12 weeks old, babies often begin to respond to your voice and face with genuine smiles. You’ll get to enjoy more heartwarming moments of connection.

Better Head Control

Improved head control is another milestone as your baby can hold their head up for longer periods during tummy time.

Decreased Feeding Frequency

Finally, you'll likely notice longer intervals between feedings as your baby's appetite and routine evolve. Your infant may also become slightly less clingy.

Remember, every baby develops at their own pace, so these changes may occur gradually over several weeks. Embrace each milestone as a sign of your little one's growth!

Embrace Every Moment of the Newborn Journey

The newborn stage, while challenging, is precious time that slips by before you know it. It's a period of intense bonding, sleep adjustments, and rapid development. Embrace the cuddles, the tiny fingers and toes, and even the sleepless nights.

As you navigate this beautiful chaos, having a way to track your baby's milestones and daily routines can be incredibly helpful. Baby Connect is a baby tracking app designed specifically for new parents! It allows you to conveniently track your baby's feeding, sleep schedule, diaper changes, and even log the things you want to remember. 

From those first smiles to growing out of the newborn stage, Baby Connect helps you document your little one's journey from newborn to infant and beyond. Try Baby Connect for free today and make the most of these fleeting newborn moments!

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