The two are reportedly living together again because Ciara believes it is best for their baby son to have his father in the house.
TMZ revealed the news, adding that sources have admitted that the pair are trying to make it work for the sake of their four-month-old son, Future Zahir.
Ciara and Future in 2013
The publication adds: "Ciara wasn't interested in a shared parenting situation ... saying she believes Future's a good father and that it's best for their son if his dad's there."
They split in mid-August after rumours circulated that Future had strayed away while on tour. TMZ confirmed at the time that Ciara wanted full custody, and that her focus was now on the baby.
The Body Party singer announced their engagement shortly after her 28th birthday in 2013.
Her beau Future proposed with a 15-carat diamond ring in New York City, and three months later, she announced on live TV that she was pregnant with the couple's first child.
In July, Ciara starred as the cover girl for Brides and opened up about her extensive wedding plans.
Ciara regulary uploads adorable pics of her son Future to Instagram
"There will be five or six [bridesmaids] and two matrons of honour [including La La Anthony]," she told the magazine. "They'll all wear the same colour, but in different styles to suit their personalities."
She added: "A few of our friends will sing, and we'll have a great DJ – good old soul mixed with new stuff. You want people to say, 'This is my jam!'"
As for her own bridal look, Ciara said that she would be swapping her everyday "tomboy chic" style for "elegance with a little edge".
"For the palette, I'm not into loud colours," she added, referring to the colour scheme of her wedding. "I like black and white, classic and clean."