Here's how long it lasts Causing vaginal bleeding month. Sometimes for a suspected ectopic pregnancy, laparoscopy insertion of a Causing vaginal bleeding viewing tube into the abdomen or laparotomy a large incision into the abdomen enabling doctors to directly view organs. The cause of the bleeding could be serious and should be determined. Examination under a microscope and analysis of a sample of the discharge Tests to detect sexually transmitted diseases using a sample of secretions taken from the cervix. An ultrasound exam of your pelvic area shows both the uterus and the ovaries.