Babies In The 7th Month: The Most Important Developmental Milestones

By the 7th month of life, a lot is happening with your offspring: the sense of hearing is almost as well developed as in adults, the baby’s head circumference is increasing and your child loves to talk in baby talk.

In addition, your offspring will find it easier and easier to turn. In the following, many interesting questions are also answered, such as: When do babies start crawling and when can babies sit?

Baby 7 Months: Physical Development And Baby’s Head Circumference

In this month, your child grows about one and a half centimeters. Brain development progresses rapidly and as a result, the baby’s head circumference grows. In the 7th month of life, boys have a circumference of around 44 centimeters, while girls have a circumference of around 42.8 centimeters.

The baby’s head circumference indicates whether your child is developing normally and healthily. The pediatrician therefore checks the baby’s head circumference regularly. During the examinations, neurological diseases, for example, can be detected at an early stage.

The baby’s head circumference was therefore already measured during the first early detection examination. On average, babies gain around 400 grams at this age – depending on how active they are in everyday life. The average clothing size is 74.

Baby 7 Months: When Do Babies Start Crawling And When Do They Sit?

At what age can babies sit? This is a question many parents ask themselves longingly. In the 7th month of life, the time has come: your child learns to sit independently. This enables your baby to participate even more actively in family life.

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The foundation for sitting upright is laid in the 4th month. During this time, babies try to squirm from the prone position in the mini push-up. By 7 months of age, babies are moving diligently, strengthening their back and neck muscles, which are important for sitting upright.

In addition, they are able to support their own weight if you put them in an upright position for a short time. When do babies start crawling? If your baby is not crawling at 7 months of age, there is no reason to worry. Only 12% of children crawl at this age.

Some children also skip this developmental stage and start walking directly later. When do babies start crawling – this is a question many parents ask themselves, but you don’t have to worry if your baby is not yet ready.

With the following tips, you can support the healthy development of your baby’s back and help him on his way to safe and independent sitting:

  • Let your baby sleep without a pillow.
  • Allow the natural curvature of the back even in the sling and always support the head well.
  • Pay attention to the squat-splay posture.
  • Baby carriers do not correspond to the natural curvature of the back and should therefore really only be used for the car.

Baby 7 Months: Perceiving With All Senses

When do babies start crawling is an exciting question. But when your baby turns 7 months old, there are many more interesting developmental steps to come. By the 7th month, your child has invested a lot of time in developing his senses.

Vision is the main beneficiary of this. In contrast to the sense of hearing, the baby’s sense of sight develops rather slowly. At birth, your child’s perception of the environment is blurred. In the first months, it has a preference for faces, the mother’s breast, but also for strong contrasts such as checkerboard patterns.

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At 7 months, it becomes easier for your offspring to perceive changes and gradations in brightness. It also recognizes the subtleties of an object. Colors can also be perceived better.

This is because the cones on his retina have developed further. By the time your baby reaches 9 months, visual acuity and depth perception are almost as well developed as in adults.

Your child’s sense of hearing works perfectly from birth. Only the understanding of speech and ambient sounds develops gradually. By the time your baby is 7 months old, he or she can tell which direction sounds are coming from.

So when he hears something, he will quickly turn in the direction the sound is coming from. The baby will now also start to respond to soft sounds when he is not distracted. There is also a lot happening in the area of the sense of touch: When your baby turns 7 months, he explores his toys and other objects more and more with his hands.

In the months before that, children use their mouths to examine objects. By now, he can also distinguish between hot and cold and soft and hard. When your baby is 7 months old, he receives his first porridge meal. This helps train the senses of taste and smell.

Baby 7 Months: Cognitive And Emotional Development

Between 7 and 9 months, mental development also progresses. Your baby’s spirit of discovery is awakened and he would like to explore new things every day. He no longer relies exclusively on his mouth, but always on his hands.

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Your baby loves to move objects back and forth, look at them in detail from all sides and bang them against each other. He also starts to throw objects away. Through this important training, your child will soon be able to reach for objects more and more purposefully. Objects with holes are especially interesting – these are explored extensively with the little fingers.

Children also develop an interest in their reflection in the mirror during this time. They begin to smile at themselves in the mirror. By the time your baby is 7 months old, he or she has already formed a close emotional bond with you, which is now strengthening even more. The baby clearly shows its affection, cuddles you, and response to your voice.

Babies between 7 and 9 months are very sensitive to your moods. During this time, your child also develops specific feelings, such as fear. He or she begins to feel more uncomfortable around strangers.

Separation anxiety can also become noticeable now. It is one of the first strong feelings of a child. Emotions such as joy can also be expressed, for example by whooping and squealing when they see you.

Social Skills And Language Development In The 7th Month

Your child’s social skills continue to progress. For example, he now responds to his name. When spoken to, he responds with his own sounds. At 6 months, your child has already begun to interpret different facial expressions.

Your little treasure is always trying to get your attention. It wants to be the center of attention and it observes the events around it with great curiosity. By now, your baby also understands the meaning of the word “no”.

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If you say “no” in a stern tone, your baby will stop what he’s doing for a moment. However, do not use the word “no” all the time, otherwise, it will lose its effect. If you listen carefully, you will notice that your baby is already forming its first syllables such as “da” and “ba”.

The child imitates your flow of speech, the melody, and the rhythm of the language, even if it does not yet want to express anything in particular. Your baby is now getting a first idea of which sound might belong to which thing.

By the time your baby reaches 9 months, he understands different things very well and can already point to many of the things you tell him in the picture book.

Baby 7 Months: How Can You Support Your Child Sensibly Now?

When can babies sit? When do babies start crawling? Is the baby’s head circumference normal? If these are questions you often ask yourself and you want to support your child in its development, read the following tips:

Mirror Image, Ahoy

With this game you can improve your baby’s attention and communication skills. All you need are toys and a large mirror. Put your child in front of the mirror with the toy. Many children react with squeals and gurgles when they see their double with all the toys.

Large, Colorful Beach Ball

Waterballs are light and can be moved with little force. Let your little one play with it in the supine position. This strengthens the back muscles, which are important for sitting.

Change Sides

This promotes the baby’s body awareness and mobility. Deliberately place your child on the opposite side of the toys when you notice that he or she has a particular favorite side.

The best products for you and your baby.

Baby monitor

With a baby monitor, you can use your time flexibly, sleep peacefully at night and still know at all times that your baby is doing well.

Nursing pillow

A good breastfeeding pillow has several advantages, because it helps you not only to breastfeed, but also to fall asleep and is also suitable as a nest.

Diaper bags

A diaper bag offers you a lot of storage space, so that you have everything you need for your baby on the go - from the changing pad to the bottle.


A pucksack gives your baby the feeling of security, like in the womb, and thus supports a peaceful and restful sleep.

Bicycle trailer

Bicycle trailers can be used in combination with a baby seat shortly after birth. They are not only safer than child seats but also more comfortable.


A playpen can be very practical in everyday life! Which model is suitable for your needs, you can read in my guide.

Baby bed

The first bed accompanies your child for years. Fortunately, there are beds that grow with your child. I have made for you on the search for the best baby beds.


A stroller is a worthwhile purchase. But there are the most diverse models on the market. Find out which is the right one.

Radiant heater

Radiant heaters provide your child with the necessary warmth when changing diapers or after bathing.

Extra bed

Side beds are very practical and offer both mother and baby a lot of advantages, because for babies, especially in the first months of life, it is reassuring to be able to sleep next to their parents.

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