This document provides guidance for evaluating patients presenting with vaginal bleeding or abdominal pain in early pregnancy. It outlines important aspects of the medical history to obtain, including last menstrual period, amount of bleeding, abdominal pain, obstetric history, and contraceptive use. It then describes potential etiologies of bleeding or pain in early pregnancy, including viable intrauterine pregnancy, ectopic pregnancy, miscarriage, or molar pregnancy. Examination findings that may be present are also listed.