Baby On Board

I saw a lot of "Baby on Board" stickers on cars. Do they mean that the baby is in the car or what it means they are pregnant?
Thank you

Usually, they are in the car, these stickers are supposed to hopefully make people more secure!

there is usually just a baby in the car. some pregnant women also use them.

Usually the baby is in the car.

they just had a baby and they are so happy to have the baby in their car they bought with enthusiasm for a sticker to let the world know.

means there is a baby in the car.

its supposed to make others around you driving safer, but it doesn't do anything. if someone wants to behave like a azzhole, then they go. Sign up in the window or not.

They mean that the baby is in the car, they put it as a kind of excuse for why they are slow or drive with caution

It means there is a baby in the car. The concept is that this will deter reckless hooligans who would otherwise collide with the car for pleasure.

Drive Safely

This can mean two. but most likely. meaning that it is "YES" there is a baby in the car. alert other drivers to be cautious. not the back door.

they are letting you know there is a baby in the car to drive carefully

.... Obviously there is a baby in the car.

First on the market in September 1984 by Safety 1st Corporation, the sign has become a fashion Its use in the United States has declined rapidly in 1986 as an imitation of lines like "Baby I'm Bored", "Pit Bull on board "and" mother-in-law in the chest "became popular, although its continued popularity in the United Kingdom (with other versions such as" Princess on board "and" Little person on board), Italy and Japan (most often called "Baby in the car." The sign refers to the alleged presence of a child (or pregnant woman) in the vehicle, implying that other pilots should be less reckless in surroundings.

let other drivers know there's a baby in the car and be careful:]

Both. Usually this means a baby or small child is driving with them. They can be used for children too. Anyway there is a baby on board somewhere.