ObjectiveAlthough the overall abortion‐related maternal mortality ratio has shown a downward trend in Ethiopia, the case‐fatality rate from abortion is still high. This study identified factors associated with delays in seeking an abortion until the second trimester at Jimma Medical Centre, Jimma, southwest Ethiopia.MethodsFrom February to August 2023, we conducted a cross‐sectional study on pregnant women seeking safe abortion care. Participants were selected through systematic sampling from a sample size of 260 calculated based on a previous study's prevalence of second‐trimester abortion (19.2%), with 80% power and a 5% margin of error. Participants were selected using systematic sampling and data were collected by an interviewer‐administered questionnaire. P‐value adjusted odds ratios (AORs) with their 95% confidence interval (CI) were used to determine the association between variables.ResultsThe study found a high prevalence of second‐trimester abortion at 58%. Factors significantly associated with delays in seeking abortion services until the second trimester included being from a rural area (AOR = 2.1, 95% CI: 1.2–3.8), experiencing social stigma (AOR = 4.2, 95% CI: 2.9–7.8), being unmarried (AOR = 1.6, 95% CI: 1.0–3.0), having limited knowledge of menstrual periods (AOR = 2.3, 95% CI: 1.2–4.6), delaying suspicion and testing for pregnancy (AOR = 18.2, 95% CI: 2.1–8.9–37.3), postponing the decision to have an abortion by more than 1 week (AOR = 4.9, CI: 1.0–23.7), and being a primigravidae (AOR = 2.1, CI: 1.1–4.1).ConclusionsBeing from a rural area, social stigma surrounding abortion, being unmarried, limited knowledge of menstrual periods, and being a primigravidae were found to be significantly associated with delays in seeking abortion services until the second trimester. A multifaceted approach and efforts should focus on improving access to healthcare resources in rural areas, reducing social stigma surrounding abortion through education and advocacy, and providing comprehensive reproductive health education to enhance knowledge about menstrual cycles and pregnancy testing adapting to local contexts including employing community‐based approaches, using visual and interactive tools, and ensuring cultural sensitivity.