Your 7-Month-Old Baby’s Development

Major milestones and everyday tips for your baby at 7 months old

Your little one is 7 months old! Most likely, they are becoming a master at sitting up, grabbing for toys and objects that they want, and (maybe) taking off as an official crawler. Life suddenly just got a lot busier, so here’s more of what you can expect this month.

7-Month-Old Baby
Illustration by Joshua Seong, Verywell

Your Growing Baby

The average weight for a 7-month-old baby boy is 18 pounds, 5 ounces, with a range in weights from 14 pounds all the way up to 22 pounds. For girls, the average weight at 7 months old is 16 pounds, 14 ounces, with a range from 13 pounds to 21 pounds, 4 ounces. Length averages for boys and girls are around 27 and 26 inches, respectively.

Developmental Milestones

Body

  • Passes objects from one hand to the other
  • Rolls from front to back and back to front
  • Sits without support
  • Bounces when in a standing position
  • Bears more weight on legs
  • Begins to crawl or may be crawling well already
  • Sees well across a room (eyesight is approaching that of an adult’s)

Brain

  • Makes specific sounds tied to emotions, like happiness or frustration
  • Responds to talking by making sounds
  • Recognizes familiar faces
  • Responds if someone is a stranger (with fear, crying, or reaching back for a caregiver)
  • Likes to look in a mirror
  • Begins to string vowel sounds together when “talking,” such as “eh, oh, and ah”
  • Responds to name
  • Babbles consonant sounds, such as “m” or “b”
  • Learns about the world through taste and touch
  • Recognizes basic words like “hi,” “ball,” or “dog”

When to Be Concerned

Although every baby will develop differently, if your little one is displaying any of the following signs or symptoms, be sure to talk to your doctor about them:

  • Doesn’t attempt to reach for items around them
  • Does not respond to affection from you
  • Doesn’t appear to respond to sounds
  • Can’t bring items, like a rattle or stuffed animal, to their mouth
  • Can’t make sounds
  • Is unable to roll
  • Has not laughed or made “happy” noises like squealing
  • Seems stiff or does not move head easily
  • Is not gaining weight

A Day in the Life

At 7 months old, your baby will be a lot more active than in months past and will require a lot of hands-on care. They are becoming more mobile, eating more solid foods, and exploring with newfound skills such as crawling. Give your little one plenty of time to explore the world around them while sticking to nap and bedtime routines that will help you both get the rest you need. Make sure you keep in mind that sleep is where all of your baby’s important growth happens in this busy time, so it should be the top priority for all of childhood.

There really isn't one magical age when your baby will start crawling, but most babies begin crawling somewhere between six and 10 months old. Some babies will crawl earlier, some may skip crawling altogether, and some may make up their own timeline completely. You might also notice that your baby has a different type of crawl than you expected. It's very normal for babies to crawl in different ways, including:

  • Traditional crawl
  • Scooting crawl, in a dragging forward motion
  • Crab crawl, with one leg bent or extended out
  • Army crawl
  • Backward crawl

In general, as long as your baby is figuring out how to move in a direction that they want, you have nothing to worry about. However, if your baby is unable to move at all, seems especially frustrated, or appears to be in pain, be sure to contact your pediatrician.

Baby Care Basics

You’re likely still trying to adjust to life with a baby while trying to make time for adult things like hobbies and exercise—maybe even reading a book or going out to dinner every now then. In other words, you’re exhausted and it’s completely understandable why you’re so tired. On top of that, you now have a baby on the move.

Exhausted as you are, you might be tempted to just switch on that TV screen, phone, or tablet to Netflix’s child-friendly channels so you can get some downtime while your little one discovers the wonders of mindless entertainment. But should you do introduce screens to your baby at this age?

The short answer is no. The American Academy of Pediatrics recommends no screens at all for children under the age of 2, so it is in your best interest to avoid screens for as long as possible. Instead, try to listen to music, encourage independent play in your child, or read books together. At this age, your 7-month-old should love to read—especially fun, discovery-type books. Look for textured “touch-and-see” type books, books with animals or sounds, or “lift-and-see” books that your little one can explore with you.

Feeding & Nutrition

At 7 months old, you should continue to introduce new foods and textures to your baby. Keep in mind, there is no rush and your little one might just take their time adjusting. Some babies may still need breast milk or formula as their main source of nutrition at this age as well. But remember, all babies are different and you should follow your baby's lead when it comes to feedings.

At this time, you can also introduce silverware and a sippy cup to your little one to use at meals and snack times. Some babies may take right to a sippy cup and prefer it over bottles, so feel free to make the transition to using a sippy cup for formula or breast milk instead of a bottle if that's what your child seems to like.

Sleep

Your infant’s sleep might be disrupted for a month or so while they begin teething for the first time. While it may be difficult to feel like you’re reverting back to the early newborn days, it is important to be patient with your baby and understand that, most likely, they are simply uncomfortable and having growing pains from those erupting teeth. To help you both get rest, consider:

  • Nursing for comfort during teething episodes
  • Allowing your infant to use a pacifier more while they're teething
  • Using pain medication such as ibuprofen before sleep to help keep your infant comfortable, as recommended by your doctor
  • Taking shifts with a partner so you can both get rest
  • Taking a day off of work to catch up on sleep when your baby is napping

You may also notice your baby has begun rolling from their back to their front and is more active during sleep, which might worry you. The AAP currently recommends that parents always put their babies to sleep on their back. There is no need to readjust your baby if they roll during their sleep. You should, however, continue to use safe sleep practices and make sure that there is absolutely nothing in the crib with your baby, including blankets, bedding, or crib bumpers.

Health & Safety

As mentioned above, most babies start teething somewhere around six months. If your baby’s first tooth didn’t begin to come in last month, get ready! Your child’s pediatrician will likely advise you to monitor your child’s teething symptoms, keep them comfortable and administer medication if needed for the pain, and begin oral hygiene. Here are some more resources for dealing with teething:

Your infant’s dental hygiene should start even before your baby has teeth. Once that first tooth erupts, however, you can add a small amount of toothpaste to clean it.

Some infants will have eczema that can flare up at different points during their first year of life, which often seems to be linked to starting to eat more solids.

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Must Knows

Keep these special tips in mind with your 7-month-old this month:

  • Focus on your mental health: Although postpartum depression most commonly shows up in the first six months of a baby’s life, it can occur at any point during their first year. Be sure to check in with yourself and your partner every month about your emotions and mental state. Some women may notice mood changes that happen as a baby decreases breastfeeding, so be aware that weaning or your baby eating more solids could affect you too. If at any time you feel the urge to hurt yourself or your baby, call 911 or your doctor immediately.
  • Consider contraception: Many women who have been exclusively breastfeeding will notice that their menstrual cycle returns around the time their baby is 6 or 7 months old. Some women will see its return much earlier. It may take some time for it to adjust back to regular intervals, so you might see extended or shorter cycles while you continue to breastfeed. Because breastfeeding can interrupt your flow’s regularity, it’s important to decide on a form of contraception that works for you and your partner if you are fertile and aren’t looking to conceive again right away. You can actually get pregnant again sooner than you think!
  • Give your baby time: Finally, it might be helpful to think of 7 months as a transition time for your baby. Some babies might be crawling, some might need more time. Some might be loving eating solid foods, others might still be focused on breastfeeding or formula. Don't get caught up in comparing or pushing your baby to hit milestones before they are ready. Your little one will develop in their own time.
Your 8-Month-Old Baby's Development & Milestones
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Article Sources
  • Dosman, C. F., Andrews, D., & Goulden, K. J. (2012). Evidence-based milestone ages as a framework for developmental surveillance. Paediatrics & Child Health,17(10), 561–568. DOI: 10.1093/pch/17.10.561.

  • American Academy of Pediatrics (2018). Ages and stages: Baby. HealthyChildren.org.

  • American Dental Association. (2018). Eruption charts.

  • American Academy of Pediatric Dentists. (2018). FAQ: Infant tooth care.

  • American Academy of Pediatrics (2016, November). Policy Statement: Media and young minds. Pediatrics, 138(5). DOI: 10.1542/peds.2016-2591.