Catelynn Lowell shares first photos of daughter Novalee Reign

MARINE CITY, Mich., March 17 (UPI) -- Catelynn Lowell took to Instagram to share new photos of daughter Novalee Reign on Tuesday.

The 23-year-old reality star and fiancé Tyler Baltierra posted the first full-face pictures of the infant on the social media site. The longtime couple got engaged for a second time in December 2014, and welcomed Novalee in January.

"Being your mommy is the best thing in the world.... you make my days brighter," Lowell captioned one of the snapshots. Baltierra added, "Being a father is the bet thing that has ever happened to me, every time I look at that face I fall in love more & more."

Lowell and Baltierra came to fame on MTV reality series 16 and Pregnant, which saw the couple give their first child, daughter Carly, for adoption. The pair went on to star on four seasons of Teen Mom, and will return for a fifth season March 23.

Teen Mom season five will feature original cast members Lowell, Maci Bookout, Amber Portwood and Farrah Abraham. Abraham was not expected to take part due to her estrangement from her co-stars, and recently admitted it was "awkward" to rejoin the series.