It seems that the time between 24 and 36 months is a prime time to introduce your toddler to a new sibling.
I know I agonized over this when my older son was 19 months old. I cried. I cried a lot. How would he feel? Would I love my younger son as much as my firstborn? (resoundingly yes!) How would the older son react?
Introducing a toddler, especially an older one, to a new baby isn’t always easy. At 19 months, my older son hardly noticed the new guy in town, but I watched some of my friends struggle with this.
Introduce the concept while Mommy is pregnant, not when you bring the baby home from the hospital. Talk to your toddler about pregnancy in terms he can understand. You don’t necessarily have to assign a time value to the experience; he likely won’t understand what “four more months” means. If you know the gender of your baby and have a name picked out, start using that with your toddler. Let him help pick out toys or clothes for the new baby.
Make a big deal about getting your toddler a new bed or a new room if he’s moving out of his nursery. Start this process well before the baby is born, so your toddler has time to settle in.
Have your toddler buy your little one a present for when he’s born. You might want to get your toddler something special that the baby can “give” him at the hospital.
Finally, when it’s time for delivery, make sure your toddler has someone loved and trusted to spend time with when you’re delivering his sibling. Bring him up to the hospital or birthing center as soon as possible after the baby is born to meet his new sibling.
After you bring the baby home, remember your older child might want extra cuddles and reassurance and might act out a little. Don’t scold him too harshly. You know what an adjustment this is for you; imagine what he feels like, too!