Hemodynamically stable patient with an undesired pregnancy of unknown location (PUL): Expectant management

PUL is a term used to describe the clinical scenario in which a patient with a positive pregnancy test has a TVUS that shows neither an IUP nor an ectopic pregnancy. This algorithm describes the management of hemodynamically stable patients with an undesired pregnancy who have chosen expectant management. Management of hemodynamically unstable patients, hemodynamically stable patients with an undesired pregnancy who have chosen proactive management, or those with uncommon or rare etiologies including, but not limited to, malignancy (eg, invasive mole, choriocarcinoma), pituitary hCG production, and heterophilic antibodies are described in related UpToDate content.