
Your 48-Week-Old Baby
Feeling guilty about saying "no" more? Here's what real boundary-setting looks like at this age—and why it's not too strict.

In This Article
If you've noticed yourself saying "no" more often to your baby lately, you're likely not imagining it—and you're probably not being too strict either. Around this age, your baby's ability to understand what you're saying has grown so much that it changes what boundary-setting can actually look like. This is especially relevant if your baby is already mobile and checking everything out.
I talked to Laura Todd, a licensed professional clinical counselor and founder of Early Bonds Therapy, about why your baby's growing comprehension shifts the way limits work and what developmentally appropriate boundary-setting actually looks like.
🚼 Baby’s Development
They understand more than they let on
Much of language development happens before babies actually start talking. Your baby might not be talking yet, but don't let that fool you—they understand way more of what you're saying than they can express back to you.
Todd explains that this shift changes what boundary-setting can look like. "At this stage of development, you no longer need to engage in passive boundaries and limits with your baby," she says. "[Their] receptive language has expanded so much that you can now introduce cause and effect boundaries through clear and direct language."
This looks like using simple, direct phrases, like "gentle hands", and trust that your baby is absorbing more than it might seem in the moment. You don't need to over-explain or wait until they can talk back to start setting limits that actually land.
Why boundaries start to click now
Your baby likely understands more than you'd think at this age, but that doesn't mean boundaries look the way you'd expect. So it's important to take a moment to level-set what developmentally appropriate boundaries and limits look like. "While babies at this age have developed a lot of skills, they are still limited in what they can comprehend and process," Todd says.
Appropriate boundary-setting at this age looks more like physically redirecting a baby and making sure their environment is safe to explore. Todd recommends creating physical boundaries, like moving your baby away from an outlet instead of calling to them across the room, and narrating the boundary in short, clear language. Setting up the environment to reduce temptation in the first place—covering outlets, moving tempting items to higher shelves—also does a lot of the work for you.
Keep in mind: even at this age, validating emotions matters. Todd suggests something like, "You're really mad you can't play with the cords, but it's not safe." Your baby may not respond in words, but acknowledging their frustration while holding the boundary teaches them both can be true at once.
Letting go of the "no" guilt
"It can feel very overwhelming to be a parent that is constantly saying no," Todd says. One way to ease that feeling is to shift how you phrase the boundary. Instead of "no hitting," try "use gentle hands." Stating the behavior you want to see, rather than just what you don't want, turns the moment into a redirection instead of a hard no—which can lessen the guilt on your end, too.
Todd also recommends getting clear on which boundaries are non-negotiable and which ones have more flexibility. "A lot of times as a parent, you have to pick your battles," she says. Hitting, biting and playing with dangerous items are hard boundaries that need to be enforced every time. But things like getting into the pantry or pushing around a kitchen chair are more flexible. Inconvenient, maybe, but not unsafe. Knowing the difference can help you decide where to hold firm and where to let something slide.
👀 Looking Ahead
First birthday prep: Your baby's big day is coming up fast! Next week, we're covering how to plan a celebration that's actually enjoyable for everyone—smash cakes, realistic expectations and all.
Expert Sources
Babylist content uses high-quality subject matter experts to provide accurate and reliable information to our users. Sources for this story include:
Laura Todd, LPCC, IECMHS, PMH-C, founder and owner of Early Bonds Therapy
