Imagine being told your partner is moving in a new person who will live with you permanently, needs constant attention, and that you're expected to be thrilled about it. That's roughly the scale of what a toddler experiences with a new sibling - and viewed that way, some jealousy and regression isn't a parenting failure. It's an entirely reasonable response to a genuinely big change.
Before the Baby Arrives
Timing the Conversation
For toddlers under 3, time has little meaning - telling them too early can lead to months of confused waiting. Closer to the due date (a few weeks out) tends to work better for very young toddlers. Older toddlers (3+) can often handle knowing earlier, especially once a visible bump makes the pregnancy more concrete to them.
Involve Them Where You Can
- Let them help choose something small for the baby - a toy, a piece of clothing.g
- Read books about becoming a big sibling together
- Talk through what a newborn is actually like - that babies mostly eat, sleep, and cry at first, rather than being an instant playmate.
Keep Major Changes Separate
If a room move, starting school, or moving from cot to bed is on the horizon, try to make these changes either well before or well after the baby arrives, rather than clustering them together. Too many transitions at once are harder for a toddler to process than any single change on its own.
During the Hospital Stay
- If possible, arrange for your toddler to visit, with someone they trust bringing them, rather than being away from both parents for an extended stretch.
- Have a small 'gift from the baby' ready for your toddler at the first meeting - it helps frame the baby's arrival as something that includes them, not displaces them
- Keep your toddler's usual routine as consistent as possible during this period, even with a different caregiver managing it.
The First Weeks Home
Expect Some Regression
Toilet-trained toddlers asking for nappies again, previously independent eaters wanting to be spoon-fed, increased clinginess - all common and temporary. This isn't the toddler 'going backward' in any lasting sense; it's a bid for reassurance during a period of real change. Responding with patience rather than frustration tends to resolve it faster than pushing back against it.
Protect One-on-One Time
Even 10-15 minutes of focused, undivided attention with your toddler each day - while someone else holds the baby, or during the baby's nap - goes a long way toward reassuring them that their place in the family hasn't been replaced.
Let Them Help (On Their Terms)
- Fetching a nappy, choosing the baby's outfit, singing to the baby - small, low-pressure ways to involve them without forcing closeness they're not ready for
- Never force physical affection toward the baby if your toddler isn't ready - this often develops naturally over the following weeks without needing to be pushed
Validate the Hard Feelings
'It's hard having a new baby around, isn't it?' goes further than most parents expect. Naming the difficulty, rather than only insisting on positive feelings about the baby, helps a toddler feel genuinely understood rather than pressured to perform enthusiasm they don't yet feel.
When to Be More Concerned
Mild jealousy, regression, and adjustment difficulty are normal and usually settle within several weeks to a couple of months. It's worth discussing with your paediatrician if you notice persistent, significant aggression toward the baby, a toddler who seems withdrawn or distressed well beyond the typical adjustment window, or any behaviour that genuinely worries you rather than fitting the expected pattern of temporary regression.
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Read: Newborn Essentials Checklist | Baby Growth Milestones Guide
