I'm not sure I would classify this as "creepy", but it certainly was werid and points towards "there's something more there".
So my wife wakes me up at 3am and tells me about this vivid dream. This little girl is trying to contact her, to be her child. But we are way past child-bearing and my wife tells the dream child, "no, go visit my sister" who has always wanted a daughter.
That morning wife calls her sister and asks if she's pregnant. Sister says she is not and they are not even trying.
Three days later, she finds out she's pregnant.
As this child grows up she resembles my wife exactly. My wife and sister look nothing alike. One is small and dark haired, and the other blonde and curvey. Whenever we go out, everyone just assumes my wife is this child's mother.