The MTV reality star and long-time partner Tyler Baltierra welcomed Novalee Reign on New Year's Day and have been utterly smitten ever since.
Yesterday, a touching image was posted to Catelynn's Instagram page showing a special moment between mummy and daughter.
The caption read: "Being your mommy is the best thing in the world.... you make my days brighter."
Another photo of Novalee showed the tot sleeping.
Catelynn and Tyler were first introduced to the public on 16 & Pregnant, a groundbreaking documentary that filmed several teenage parents-to-be, showing the realities and struggles of becoming a parent so young.
In Catelynn and Tyler's case, they decided to place daughter Carly up for adoption as they felt it was in her best interests. Their story, which continued in Teen Mom, showed Catelynn and Tyler's contact with Carly's adoptive parents and their updates on Carly's life.
The couple have now turned their lives into a book called Conquering Chaos.
A description of the book on Amazon.com reads: "Between their experience placing their first daughter for adoption, and their struggle to cope with problems in their families, Catelynn and Tyler were challenged in every imaginable way.
"But against all odds, the childhood sweethearts rose above the dysfunction to become responsible adults whose story has inspired many others."
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