Menstruation postponed 4 days, often bellyache, suspect ectopic pregnancy

Menstruation delay four days abdominal pain and sexual life, consider the phenomenon caused by pregnancy, do not rule out the possibility of ectopic pregnancy. Need to go to the hospital for blood test HCG examination, can confirm whether pregnant. Wait until 40 days after pregnancy, can be diagnosed through abdominal color ultrasound is intrauterine pregnancy or ectopic pregnancy, in order to early treatment.