Last week, I excitedly pulled into a parking spot reserved for expecting mothers and customers with infants. And then I began to wonder, "Is Liam still an infant? Am I allowed to park here?"

I realize that he's no longer a newborn, since that title is probably reserved only for little ones who are within the first 3 weeks of life.
He's definitely still a baby, since a recent television commercial explained that a baby's a baby until he turns one year old.
But...is he still an infant at 4 months old? Moreover, should I have taken this parking spot? I have no idea!