A 29-year-old woman, five weeks and four days into her second pregnancy, had mild vaginal bleeding and stable vital signs. Her beta-hCG rose abnormally and then flattened. A transvaginal ultrasound found no pregnancy in her uterus.
That combination is common enough to have a name: pregnancy of unknown location, and it usually ends with doctors finding the embryo in a fallopian tube. This one did not.
