So im learning SEX-ED and i wanted to know how are babys born?

A bird.

Step-by-step explanation:

A bird called a stork comes by your doorstep and takes a massive sh1t in front of your door and when you go outside there's a baby sitting on their head then to activate them you grab them and throw them across a window or some sh1t then get a fake birth certificate by the bird and then you shoot the bird because it's finished it's job then you take the baby in your house and deal with it's sh1t for the rest of your life. Hope this helped!

astronomers is your final answer! : )