Definitely. "Older babies and toddlers often get jealous when their mom holds another baby," says pediatrician Tanya Remer Altmann, editor of The Wonder Years: Helping Your Baby and Young Child Successfully Negotiate the Major Developmental Milestones. "It usually happens between 9 and 15 months."
Says Altmann: "Your baby is used to having all the attention. If there's suddenly someone else to share it with, he's going to say, 'Hey! That's my mom!'"
The positive side to your baby's jealousy is that it means he truly knows who you are and wants your attention. You've bonded. If you haven't seen him demonstrate separation anxiety when you leave the room or the house, or stranger anxiety when a new person walks into the room, you probably will soon.
If you and your baby are visiting a friend and you pick up a cuddly newborn and begin cooing at her, it's normal for your baby to possessively demand your attention, says Altmann.
At this age, he's too young to understand the concept of sharing Mom. Pass the friend's baby back, pick up your son, and look at the baby together. When your child is distracted by some toys across the room, you can try holding your friend's baby again.
When your child is older, it's important to teach him to accept your giving attention to other children. One way to do this is to involve your child right off the bat, says Altmann. Ask, "Should we hold the baby together?" Or say, "I'm going to hold the baby — why don't you help me?" Ask your child to hold the baby's feet or blanket.
"If you get your child to participate, he'll feel appreciated and involved," says Altmann. "And remember to praise him for doing a great job helping."
Find out how to cope with competing demands from your newborn and toddler, help your child adjust to a new sibling, and avoid sibling rivalry.