Letter To Child On New Sibling Arrival
A new baby is exciting — and a little scary for the one who was your baby first. This letter reassures your child of your unchanging love and celebrates their proud new role.
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When and how to use this letter
Give this letter in the last month of pregnancy or in the first days after the birth — timing it to when the change feels real. Too early and it is abstract; at the right moment, it becomes the explanation that makes everything click.
The letter has two jobs: validate feelings and assign importance. First, name the worry every child has ("will you still love me the same?") and answer it directly — unspoken fears grow, spoken fears shrink. A non-obvious tip: give the child a specific, important-sounding role — "official welcomer," "lullaby singer," "big-kid teacher." A title transforms them from displaced to promoted, which is exactly the reframe they need.
Read it aloud together rather than just handing it over. Young children process big changes through conversation, and the letter gives you the perfect script to start it. Let them ask questions, even silly ones, and answer honestly.
Avoid promising that "nothing will change" — it will change, and broken promises damage trust. Instead promise what is actually true: your love stays the same, and some changes will be wonderful. Read the letter together as a family and let excitement replace worry. Big siblings who feel important become the baby's first best friend.
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