This study aims to assess the incidence of ectopic pregnancy among people wanting pregnancy compared to people seeking abortion. The specific research questions are: Are people seeking abortion at lower risk of experiencing an ectopic pregnancy compared to people not seeking abortion? What are the unique risk factors for experiencing an ectopic pregnancy among people seeking abortion? How do people seeking abortion who are eventually diagnosed with ectopic pregnancies initially present for care? We will conduct a case-control study using a retrospective review of electronic health records of approximately 2,200 randomly chosen cases of ectopic pregnancies and a comparison group of 1,100 randomly chosen intrauterine pregnancies.
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