tianwen chen , 65 , and his wife gairen guo , 60 , found their first child - a baby girl - on the side of the road one day in 1989 and carried her home , but it has n't always been this way .
the couple , who live outside of yuanping city , found their first child - a baby girl - on the side of the road one day in shanxi province , central china .
but the couple have faced a great deal of heartache over the years .