 An experimental design will be used for the proposed small trial. Two hundred women, who have not been pregnant in the past year and report alcohol at risky levels will be randomly assigned to e-SBI or usual care. Participants will complete baseline, 3-month and 6-month follow-up assessments. These assessments will examine drinking and pregnancy as well as possible negative outcomes, such as increased drug use associated with the e-SBI. To address methodological limitations in prior research, the study design incorporates drink size assessment to better measure drinking outcomes, minimizes assessment reactivity for controls at baseline, and includes a booster e-SBI at the 3-month follow up. This allows for the examination of whether drink size assessment reduces drinking by itself and if its effects are equivalent to that of the full e-SBI. With these design innovations, the study is expected to provide information that can be more rigorously assessed in a subsequent multi-arm trial. Because it sets the stage for a Phase II trial of e-SBI efficacy for reducing prenatal alcohol use, our proposed study is of significance for improved maternal and child health. Findings will also impact the larger intervention literature on cost-effective strategies to reduce alcohol-related harm. 