Stars Who WELCOMED KIDS YOUNG

In the ever-unpredictable world of Hollywood, starting a family at a young age is far from the strangest thing that can happen.

- 

The average first-time mother in the U.S. is 27.5 years old, according to CDC data, but many celebrities have gotten baby fever way earlier. Most recently, Millie Bobby Brown, 21, and husband Jake Bongiovi, 23, announced