Siblings and a New Baby: How to Prepare Your Older Child

A new little person is about to join the family. It is exciting for you, but for your older child it can feel like the whole world is being turned upside down. The one who has always been the center of attention will suddenly have to share it with a newborn.

Jealousy, regression, and big feelings are completely normal. With a little preparation and patience, you can help your older child through the transition — and lay the foundation for a strong sibling relationship.

Preparing During Pregnancy

The better prepared your older child is, the smoother the transition will be. But keep in mind that children at different ages understand the situation very differently.

When should you tell them?

There is no one right answer, but here is a general guideline:

• Under 2 years: Tell them late in the pregnancy, ideally when your bump is clearly visible. Their sense of time is limited.
• 2–4 years: Tell them after week 20, when the pregnancy is more secure and you can show your belly. Keep it simple: "A baby is growing in Mommy's belly."
• 5+ years: Can be told earlier. Older children understand more and like being in the know.

Involve your older child

• Show ultrasound pictures and explain what you see
• Let your child help choose clothes or items for the baby
• Read picture books about getting a sibling
• Visit friends or family who have a baby so your child can see what it involves
• Use dolls to practice holding, diapering, and being gentle

Avoid big changes close to the due date

Try not to make too many changes right before the birth:

• Changing rooms? Do it at least 2–3 months before the due date so your child does not feel "pushed out"
• Potty training? Start well in advance, or wait until the baby is a few months old
• Giving up a pacifier? Same principle — do not take things away when there is already a lot of change

Age-Appropriate Advice

Under 2 years

Children under two understand little of what is happening. They primarily notice that mom and dad are behaving differently.

How to help:

• Keep daily routines as unchanged as possible
• Give lots of physical closeness — carrying, snuggles, lap time
• Let your child "help" with the baby: fetch a diaper, sing, hold the bottle
• Do not expect the child to understand that they must be gentle — they need supervision at all times

2–4 years

This age group is often the hardest hit by jealousy. They understand enough to see that something is changing, but not enough to manage the feelings.

Common reactions:

• Regression: wanting the pacifier back, wetting pants again, talking in a baby voice
• Anger: hitting, pinching, or being rough with the baby
• Withdrawal: becoming quiet, not wanting contact
• Attention-seeking behavior: arguing, crying, "look at me!"

How to help:

• Regression is normal and will pass. Do not make a big deal of it.
• Give your older child a role: "You're the big brother/sister! Can you show the baby your favorite book?"
• Talk about feelings: "I can see you're sad. It's okay to find this hard."
• Set limits calmly: "You can't hit the baby, but you can hit the pillow if you're angry."
• Give one-on-one time with just mom or just dad — every day, even if it is only 15 minutes

5 years and older

Older children understand more and can often put their feelings into words. They are proud of their role as big brother or sister, but need reassurance.

How to help:

• Give them responsibilities they can manage: fetching diapers, choosing clothes, singing to the baby
• Talk about how the baby "looks up to" them
• Protect their own time and activities — hobbies, friends, and schoolwork should not always take a back seat to the baby
• Be honest: "Babies cry a lot and need lots of attention. But you are just as important."
• Let them invite a friend over — normalcy is good

The First Weeks at Home

The first meeting

• Let your older child meet the baby in a calm setting, ideally at home
• Put the baby down so your arms are free to hug your older child
• Let visitors greet your older child first — "Hi, big brother! Can you show me the baby?"
• Do not force contact. Some children need a little time to approach

Daily life with two (or more)

• Involve in care: Let your older child help with bathing, lotioning, diapering. Most children love being helpers.
• Nursing = quality time: When you are nursing, you are "stuck" in the chair. Use the time to read, sing, or tell stories to your older child. Keep books and activities within reach.
• One-on-one time: Plan daily alone time with your older child. One parent takes the baby, the other takes the older child — and switch.
• Accept the mess: The house will not be as tidy as before. That is fine. Focus on relationships, not perfection.

Jealousy and Difficult Feelings

Jealousy is a normal and healthy emotion. It means your child cares about their relationship with you. The goal is not to eliminate the jealousy but to help your child manage it.

What you should do

• Acknowledge the feeling: "I understand that you find it boring when Mommy holds the baby all the time."
• Avoid comparisons: Do not say "The baby doesn't cry like you do."
• Avoid the "big sibling duty": Sharing is nice, but your child has the right to their own toys and space.
• Don't say "be careful!" a hundred times. Show instead: "See, we stroke the baby so gently, like this."

What you should avoid

• Scolding your older child in front of the baby for negative behavior toward the baby — handle it privately
• Saying "you're so big now" as a reason for the child to tolerate things
• Always letting the baby "win" — your older child needs to see that their needs count too
• Giving the baby your older child's favorite toy without asking

When Should You Seek Help?

Most sibling reactions are temporary and completely normal. But contact your pediatrician or a family counselor if:

• Your older child is repeatedly aggressive toward the baby despite clear limits
• Regression lasts more than 3–4 months without improvement
• Your child seems persistently sad, withdrawn, or anxious
• You as a parent are exhausted and need support

Frequently Asked Questions

Is it normal for my older child to want diapers again?

Yes. Regression is one of the most common reactions in children between ages 2 and 4. They are trying to "become a baby again" to get the same attention. Do not make a big deal of it — go along with it, and it will pass.

What is the best age gap between siblings?

There is no perfect age gap. Under 2 years: the children tend to play well together eventually, but the first years are demanding. 2–3 years: most common, more jealousy but also more shared play. 4+ years: your older child is more independent, but the children have different interests. Every combination has advantages and challenges.

Should my older child be present at the birth?

It depends on the child's age and temperament. Most experts recommend that children under 5–6 years not be present during the birth itself, but visit right afterward. Older children can be present if they genuinely want to be and there is an adult responsible for them.

How do I handle my older child hitting the baby?

React calmly but firmly: "We don't hit the baby. The baby gets sad." Move your older child away, give attention once the situation has calmed down, and talk about the feeling behind the action. Never hit back or punish harshly — it escalates aggression.

Read More

• Sibling Age Gap: Pros, Cons, and Preparation
• Postpartum: Everything You Need to Know
• Newborn Essentials Checklist
• Baby Milestones

Sources

1. AAP - Preparing Your Child for a New Sibling
2. Zero to Three - Sibling Relationships