The 30-year-old reality star took to Instagram on Sunday to honor Chyna on Mother's Day and thank her for giving him his only child.
Rob shared a video collage of various moments during Chyna's pregnancy and after welcoming Dream into the world.
"And happy mama's day to the mother of my only child @blacchyna," he captioned the video. "I am so Thankful for our beautiful baby girl and so Thankful for YOU and never thought I could be this Happy so thank you for giving me Her."
Meanwhile, Chyna also took to Instagram to share a couple videos with her kids, including her son with Tyga, King Cairo.
She captioned the videos, "Blessed."
Rob and Chyna broke up in February, but while they may not be a romantic item anymore, they remain united as they co-parent baby Dream together.
"They are co-parenting and independently working on themselves but they're more cordial now than they have been, which is why they hung out recently," a source previously shared with E! News. "But by no means are they back together."
They no longer live together, but they have worked out a routine in which they can both be with Dream.
According to our insider, Rob sees Dream on a weekly basis, and "he's always so happy to see her."