"Welcome to the world sweet Stella! Stella Rhea Edwards came on her own time and surprised us New Years Day," the new mum excitedly captioned the heartwarming post. "What a way to start our year! We are so in love with her already."
The birth of their daughter comes exactly nine months after Ryan was released from jail following his arrest for theft along with a previous heroin possession charge which stemmed from an outstanding warrant.
The dad-of-two was arrested in January after he allegedly walked out of a bar without paying his $1,000 bill in December 2018. The bartender reportedly recognised Ryan from previous mugshots and called the police. He was arrested weeks later.
Despite their tumultuous past and once troubled relationship, the couple seems to stronger than ever with Mackenzie also posting a photo with her other son Hudson— who she shares with her ex-husband— and Ryan's daughter Bently, who he shares with Teen Mom star Maci Bookout.
The couple announced their pregnancy news in July, sharing a photo of the sonogram with the caption, "Baby Girl Edwards is coming in January."