The overwhelming majority of abortions in this country (more than 90%) occur before the pregnancy has reached 12 weeks, and generally less than 1% occur after 20 weeks. As is the case with all healthcare, however, there are instances in which difficult or unpredictable circumstances can intervene and make accessing an abortion beyond 20 weeks a necessary option for patients to have. Pregnant people need abortion care later in pregnancy most often related to two factors.