“…In order to reduce unplanned fertility, it is vital to understand the context in which unplanned births occur. Although there is a large literature examining those who have unplanned births (e.g., Henshaw 1998;Musick 2002Musick , 2007Finer and Henshaw 2006), much of this research fails to consider how unplanned fertility varies across the social contexts of age, union status, parity, and race-ethnicity. Instead, these characteristics are often studied by themselves or only subgroups are studied.…”