Is it normal for a newborn to loose her empirical cord in 8 days?

SEPARATION VARIES. The care of the umbilical cord stump influences the timing of separation. In areas where it is left to dry naturally or occasionally cleaned with rubbing alcohol, it often separates in a week or less. In areas that apply tripple dye as an antiseptic technique, it may delay separation 3 or more wks. International comparison studies show no increase in infections with simple drying over other methods.
Sometimes happens. Babies usually lose the umbilical cord stump around 2 to 3 weeks of age, but if a baby is normal, healthy, eating fine, sleeping fine, and pooping fine, then there should be no problem with him losing his stump at 8 days. If there are any concerns, the parents can call the doctor in the morning.