To parents: When did you feel the parental instinct kick in?

Some people know all their lives they wanna have, love and protect their kids at the expense of their own lives if necessary

Some people have kids and don’t really truly feel the instinct to love and protect after they are the kids are born.

Some people unfortunately never get it before they have kids and never have it after either. Sometimes I see parent animals protect their young till they themselves almost die. Yet humans… sometimes they aren’t as good of parents as most animals.