Saint Joseph Hospital & Good Samaritan Hospital
Neonatal Intensive Care Units
(NICU)
Development at
29-31 Weeks
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Before Your Baby Is Born
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Your baby is gaining weight.
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Body muscle and fat are increasing.
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Eyes open and close.
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Bones are fully developed but are soft and flexible.
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Babies born this early will need special care in the NICU to survive.
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Appearance
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Babies at this age have red skin color, regardless of ethnic background. Natural skin color will develop over the next four weeks.
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The ears are very soft and bend easily.
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You will see soft, fine hair that covers the body. In some areas it may be very dark. This is called lanugo.
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Tone and Posture
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Muscle tone is improving.
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Arms and legs are slightly bent.
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The muscles in the legs will develop strength first. Your baby will attempt to pull legs up toward the stomach.
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Baby’s head will fall back unless supported.
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Movement
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Nerves are not fully developed.
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Movements are not smooth at this time. You may notice shaky or jerky movements.
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Your baby is able to open and close hands.
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Your baby is able to maintain a grip for a short period of time.
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Planned movement is first seen in your baby’s legs.
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Vision
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Blinks or closes eyes tightly from light.
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Has poor control of eye movements. Eye movements may be jerky.
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Eyes may appear to be crossed.
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By 29 weeks, your baby may be able to focus on an object and follow it.
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Hearing
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Your baby is unable to turn his or her head toward sound.
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Your baby easily startles with loud noises.
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Loud noises are stressful to the baby.
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Soothing sounds help the baby to calm. He or she may stop moving, open mouth or widen eyes.
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Your baby knows the sound of your voice and calms when he/she hears you speak.
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Feeding
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Your baby may be able to suck and swallow, but it will be slow and awkward.
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Sucking can maker your baby tired.
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Swallowing is irregular.
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Gag reflex is not fully developed.
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Babies at this age are still fed by a tube that goes through the nose or mouth to the stomach.
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Your baby may benefit from non-nutritive sucking at the breast or with a pacifier.
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Touching
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A gentle touch may cause your baby to move and awaken.
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Your baby may be awake for several minutes at a time.
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Your baby may be able to tolerate longer periods of touching without becoming stressed or upset.
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Painful procedures or stimulation will cause your baby to pull away and cry.
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Behavior
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At 28 weeks, your baby sleeps most of the time. As each week passes, the periods of alertness increase.
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Your baby is able to focus on something for 30 to 60 seconds.
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Your baby may become upset if he/she has too much activity.
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Things to Do For Your Baby
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Learn what normal behavior is for your baby and what causes your baby to be stressed.
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Learn the cues that your baby gives you when he/she is ready to interact. These are called "I'm Ready" Behaviors.
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Discover the type of touch that soothes and comforts your baby.
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Learn how to lay your baby in comfortable positions.
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Learn how to keep your baby tucked in the fetal position. This means bringing your baby’s legs and arms close to his/her stomach and chest.
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Learn how to nest your baby in the isolette. This is called containment/ cradling. It is done by loosely wrapping your baby in a blanket and placing rolls completely around his/her body. This gives your baby boundaries on all sides and helps him/her stay in a tucked position.
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Position your baby’s hands up close to his/her mouth or face whenever possible.
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Support your baby’s head while holding.
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Hold your baby wrapped in a blanket or skin-to-skin (kangaroo care). This is when mom or dad holds the baby on their chest, with the baby’s skin next to theirs.
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Touch your baby with a firm caress rather than soft stroking movements.
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Have the nurse instruct you on bathing techniques for your baby.
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Once your baby can open his/her eyes, allow him/her quiet time to just focus. Babies have a hard time handling several things going on at a time, such as talking, looking around and being touched. Your baby can become very tired just trying to focus on you or an object.
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Shield your baby’s eyes from bright lights.
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If possible have your baby look at your face.
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Bring in a blanket or afghan from home to cover your baby’s incubator. Your baby needs to be in a dark environment when sleeping and have periods of light during awake times.
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Talk or read to your baby in a low quiet voice for short periods of time.
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Offer a pacifier during tube feedings if you notice your baby making sucking movements.
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Your baby needs sleep in order to grow.
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Use only one form of interaction at a time with your baby, like speaking softly, rocking, or touching.
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"I’m Overwhelmed" Behaviors (see "I’m Overwhelmed" Behaviors Section)
Minimal stimulation is best at this age. These behaviors may mean your baby is stressed or upset and needs rest.
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Change in breathing patterns, heart rate or color.
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A worried facial expression
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Frowning/grimacing
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Limp posture
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Looking away from you
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Flailing arms or legs
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Squirming
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Tremors or startles
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Spreading fingers apart (splaying)
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Yawning
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Crying/Fussing
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Arching back and neck
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"I'm Ready" Behaviors (see "I’m Ready" Behaviors Section)
Babies born at this age are capable of brief periods of social contact. These behaviors may mean your baby is ready to interact.
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Relaxed arms, legs and facial expression.
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Sucking on fingers or hands.
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Awake and quiet with bright, shiny eyes.
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Focused attention (looking).
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