Evaluation of Momentary Affect Regulation - Safer Sex Intervention

Inclusion Criteria: * Visited reproductive health care provider in the past two years * Own a smartphone * Have the technical capacity to participate * Be fluent in English * Be 16 to 21 years of age * Be biologically able to become pregnant (to the best of their knowledge) * Score at least 8 on the PHQ-8 * Have had penile-vaginal sex in the past 3 months * Have had penile-vaginal sex at least once a week, on average * Report having done at least one of the following during the 3 months preceding eligibility screening: 1) Not using a condom every time they have sexual intercourse; 2) Used condoms, a diaphragm, cervical cap, spermicide, sponge, fertility awareness, or withdrawal as a primary form of birth control; 3) Had sexual intercourse with more than one person; 4) Had sexual intercourse within 2 hours after using drugs and alcohol; and/or 5) Been treated for an STI/STD Exclusion Criteria: * Trying to get pregnant or currently pregnant at the time of eligibility screening * Have given birth during the 6 months preceding eligibility screening * Married or engaged to be married at the time of eligibility screening * Identified as fraudulent