Cardi B is urging fans to check themselves as they hound her over her relationship with Stefon Diggs -- telling them to quit being "mean" as she navigates parenthood with him and prepares for her upcoming tour.
Check out her lengthy social media video from Monday night -- she lays it out plain and simple for her haters, noting ... "I can’t change sh*t. I can’t go back in time. I already had a baby."
She hilariously continues ... "Y’all want me to put my baby back in my p***y?