Menstruation delay 18 days pregnancy test a bar can rule out pregnancy

Women's menstrual cycle is relatively regular, then delay 18 days, early pregnancy test paper negative, generally represents no pregnancy, but menstruation delay this period of time, women if there is still sexual life in the same room, and can not rule out whether pregnant, there may be a short pregnancy time, the current stage of detection can not be clear, need to be in the last room interval 12 days, do a blood test HCG, clear whether pregnant. Menstruation delay, may also be caused by endocrine disorders, not necessarily related to pregnancy. Can detect gynecological color ultrasound and sex hormones 6, depending on the situation related to drug conditioning correction, usually pay attention to regular work and rest on time, prevent staying up late tired, maintain a calm and stable state of mind.