Late detection of pregnancy causes

Women late detection of pregnancy, if irregular menstruation, menstrual cycle is longer that the detection of pregnancy will be later. Normally, from the fertilized egg to implantation, this process takes about 5~7 days, but also varies from person to person, if because of women's own reasons, there are ovarian, fallopian tube or uterine diseases, fertilized egg implantation time late, will also be later detected pregnancy. If ectopic pregnancy women, due to HCG levels rise slowly, the detection of pregnancy time will also be delayed. In addition, if the pregnancy test is performed through the early pregnancy test paper, the pregnancy cannot be detected due to incorrect operation methods or quality problems of the early pregnancy test paper. Later, when the blood test HCG or B-ultrasound is performed, it will be later.