4. Discussion
Pregnancy scares are associated with changes in contraceptive use that increase the risk of unintended pregnancy. These results suggest that a pregnancy scare is not a “wake-up call” to start using contraception, to increase contraceptive consistency, or to switch to a more effective method. Furthermore, these changes in contraceptive use occurred in the very short-term – the week after the pregnancy scare, when memory of the scare is still likely strong – as well as in the longerterm – at least 4 weeks after the pregnancy scare. Thus, contraceptive users who experienced pregnancy scares experienced increased unintended pregnancy risk, relative to young women who did not experience a pregnancy scare. The effect of experiencing a pregnancy scare on subsequent change in contraceptive use among contraceptive nonusers is less clear. More research is needed to better understand how pregnancy scares affect women who are not using contraception. It is also important to note that most women continued the same contraceptive behavior between interviews with an intervening pregnancy scare and between adjacent interviews without an intervening pregnancy scare. That is, most of the time respondents continued using or not using contraception, they continued using contraception consistently or inconsistently, and they continued using the same contraceptive method, whether they experienced a pregnancy scare or not. It is beyond the scope of the current study to explore why contraceptive use after a pregnancy scare worsens, but future research should examine whether pregnancy desire, attitudes toward contraception, or perceptions of infertility change after this experience. It is possible that pregnancy scares normalize the experience of pregnancy, and may even increase desire for pregnancy. It is also possible that pregnancy scares decrease confidence in contraception or increase selfperceptions of subfecundity, which in turn affects contraceptive behavior. Adolescents who perceive themselves as unable to conceive use contraceptives less frequently than other adolescents [9].