Britney Spears: The pop singer’s first son, Sean, was born when she was only 23 years old.
Ashlee Simpson: Jessica Simpson’s little sis became mom to son Bronx at the age of 24.
Reese Witherspoon: The Hollywood star’s first child was born when she was all of 23 years old.
Hilary Duff: Hilary who is famous for her character of Lizzie McGuire on Disney channel married hockey star Mike Comrie. She gave birth to their child when she was only 24 years old.