Then: Young couple Amber and Gary's relationship fundamentally changed when their daughter Leah was born in 2008.

Now: Despite her parents' torrid relationship and her mother's prison stint, Leah currently has both Amber and Gary in her life.

Then: Birth parents Catelynn and Tyler decided open adoption was the best option for their daughter, Carly, as they were both 16 at the time of her birth.

Now:Currently six years old (this photo was taken a few years back), Carly still receives visits from her birth parents, who are now engaged. She's also getting an extra visitor: a baby sister, courtesy of a much more stable Catelynn and Tyler.

Then: Born two months after her father tragically died in a car accident, Sophia lived with her mom and grandparents.

Now: At five, Sophia now lives with just her mom (after a rollicking conflict between Farrah and her parents) and she's front and center stage on Farrah's Instagram.

Then: Maci was forced to shift gears and reprioritize her busy life when Bentley arrived in 2008.

Now: With Maci finding success in utilizing her platform to speak on teen pregnancy, Bentley has grown into one active, and adorable, little kid.

Then: Chelsea and on-and-off boyfriend Adam welcomed Aubree into the world in 2009.

Now: After finally cutting romantic ties with Adam, Chelsea continues to co-parent Aubree, who is a proud older sister to Adam's daughter Paislee.

Then: Jace spent a lot of his early years with his grandmother, Barbara, as mom Jenelle struggled through her hard-partying ways.

Now: With mom Jenelle back in his life, Jace can also spend time with baby brother Kaiser.

Then: Kailyn gave birth to Isaac amid tension between Kailyn and her family as well as with Isaac's father, Jo.

Now: No longer the baby of his family, Isaac is older brother to Lincoln, Kailyn's son with husband Javi.

Then: The 2009 birth of twins Aliannah and Aleeah marked the start of a whole new life for 17-year-old Leah.

Now: Despite Ali's diagnosis with a rare form of muscular dystrophy, both girls thrive as big sisters to Adalynn, Leah's daughter with second husband Jeremy.