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  • Over 80% of pregnancies are unintended among women with opioid use disorder (OUD; Heil et al., 2011).
  • Use of effective contraception is uncommon in this population (Terplan et al., 2015).
  • Initiating and using effective contraception involves delays: to obtain the method from a provider, to become protected after initiating use.
  • Interventions that include delay reductions among other elements have increased contraceptive use (Heil et al., 2016; Secura et al., 2014).
  • Women with OUD have reported greater likelihood of engaging in unprotected sex at shorter delays to acquiring protection from sexually-transmitted infection (STI) than women without OUD (Herrmann et al., 2014).
  • There is no current method for assessing how delays to pregnancy protection affect sexual decision-making.
  • The present study was designed to evaluate a novel tool for measuring how delays to pregnancy protection affect self-reported likelihood to engage in protected vs. unprotected sexual intercourse.