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Pregnancy of unknown location: an evidence‐based approach to management

•  As women are presenting to early pregnancy assessment units at increasingly earlier gestations and are having earlier scans, the incidence of pregnancy of unknown location (PUL) is increasing. •  Although the vast majority will be failing PULs or intrauterine pregnancies, a small subset will be ectopic pregnancies; it is the detection of women in this group that poses the greatest challenge. •  Conservative management of PUL results in lower rates of unnecessary intervention, as the condition often resolves spontaneously; the difficulty is in determining which ones will not.