Baby Week by Week

Small and sweet, yes. But clueless? Not your little one! Read on for fascinating development research about (and simple recommendations for) your baby during these first 52 weeks.
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Mom Lifting Baby
Your Brilliant Baby in Week 38: Supporting Baby's Attempts
There are just some achievements your baby needs a bit of assistance with these days. Learn about how you can make them easier in week 38. ... Read More
Baby With Activity Center
Your Brilliant Baby in Week 39: Categorizing
Your child's understanding of the world deepens this week as she begins to comprehend that items fall into categories. Learn more about this ... Read More
Newborn Baby sleeping on Mom
Your Brilliant Baby in Week 3: A Discerning Sense of Touch
These days, your newborn is getting a feel for the world around him—literally! Learn how meaningful touch is for your baby right now. ... Read More
Mom and Baby Looking Out Window
Your Brilliant Baby in Week 40: Following Your Gaze
You already know that you're Baby's first and foremost teacher, but even where you look is considered important to your child in week 40. Learn ... Read More
Baby Playing With Toy
Your Brilliant Baby in Week 41: Using Tools
It's tool time for Baby: He's beginning to realize he can use the objects around him to obtain other items. Learn what's up with this fun skill in ... Read More
Baby Being Fed
Your Brilliant Baby in Week 42: Pairing Objects with Actions
Right now, your baby is beginning to make all sorts of associations about the items in her world and the actions associated with them. Learn ... Read More
Mom Holding Daughter
Your Brilliant Baby in Week 43: Demystifying Separation Anxiety
Daycare drop-offs may be a mess around week 43. Learn why Baby is struggling with separation anxiety right now, and how you can ease ... Read More
Mom Holding Baby
Your Brilliant Baby in Week 44: Understanding Attachment Hierarchy
By now, Baby has established rules about who she'll turn to first, second, and so on. Learn how that has developed and what it means for your ... Read More
Baby Playing With Blanket
Your Brilliant Baby in Week 45: Realizing Shapes Have Meanings
Hide and seek is especially fun with your baby in week 45, when he finally realizes that coverings take on the shapes of the items underneath ... Read More
Mom and Baby Laughing
Your Brilliant Baby in Week 46: Combining Categorizing and Imitating
By week 46, your baby may amaze you with her ability to remember watching you brush your hair in the mirror, and then later pretend to brush her ... Read More
Mom Lifting Baby to Window
Your Brilliant Baby in Week 47 : Moving with Skill
Locomotion, baby! Whether your baby is crawling, scooting, pulling himself up, or just attempting any of these, his movements are ... Read More
Baby in High Chair
Your Brilliant Baby in Week 48: Developing the Pincer Grasp
An exciting fine motor milestone is upon Baby in week 48: The development of her pinching fingers, or pincer grasp. Learn more about what this ... Read More
Baby Playing on Floor
Your Brilliant Baby in Week 49: Improving Memory
You might be amazed these days by Baby's memory and imitation skills. Learn more about how she mimics in week 49.
Mom holding 4 week old baby
Your Brilliant Baby in Week 4: Identifying Smells, Sounds, and Tastes
Amazingly, your newborn’s abilities to hear, smell, and taste are already hard at work making sense of her environment. Here's why your ... Read More
Babies Playing in Playground
Your Brilliant Baby in Week 50: Social Referencing
Your child is beginning to use your judgment to guide her actions as her first year draws to a close. Learn more about this concept (called ... Read More
Your crash-course in all things baby.