The process of introducing your baby to your cat is a lot longer than you think. It’s not just a howdy-do here’s your new roommate type of situation.

Since your baby is going to grow so fast, your cat is going to have to get used to each stage of the baby’s life just like you do. Spoiler alert: your cat will hate your child as a toddler.

Here’s how to introduce your baby to your cat starting during pregnancy.