Can menstruation delay 4 days to measure early pregnancy

Menstruation delay four days generally can not detect early pregnancy; menstruation delay four days at this time the HCG content in the body is very low, generally difficult to detect, it is best to wait until menstruation delay more than a week or fifteen days after the same room to do early pregnancy check, at this time the HCG in the body is higher, the detection results are more accurate.