Hilary Duff will be 24 when she will be expecting her first child. Here are some Hollywood starlets who had their first children around the same age as Hilary or younger:
Jamie-Lynn Spears - Made headlines when she became pregnant at the age of 16 and gave birth to daughter Maddie at 17.
Solange Knowles - Beyonce's younger sister had her son Daniel when she was only 18.
Bristol Palin - She wasn't famous yet when she gave birth to son Tripp at age 18.
Niki Taylor - The supermodel had twin sons Jake and Hunter at age 19, back in 1994.
Charlotte Church - The British singer gave birth to daughter Ruby at 21, and had second child Dexter at 22. She was pregnant when Hilary Duff went on her talk show in 2007.
Candace Cameron Bure - Like Hilary Duff she is a former child star (Full House) and is married to a (former) hockey player. She gave birth to daughter Natasha at 22.
Reese Witherspoon - Was 23 when she had her first child Ava in 1999.
Britney Spears - Had her first baby Sean Preston when she was 23. Her second son Jayden James followed shortly after.
Camila Alves - Has two children with Matthew McConaughey. Their son Levi was born when she was 24 years old. They later had a daughter - Vida.
Ashlee Simpson - Was 24 when she gave birth to her son, Bronx.
Kate Hudson - Like Hilary was also 24 when she had son Ryder.
Kendra Wilkinson - Was also 24 when she had her son Hank Baskett IV in 2009.
Nicole Richie - Was 26 when she had her daughter Harlow with Hilary's ex-boyfriend Joel Madden. They had a son, Sparrow a year and a half later.