Physical inactivity leads to many negative health outcomes. This is especially true during pregnancy, even still, many pregnant women are not physical active during pregnancy. The field of Behavioral Economics can be helpful in understanding how pregnant women value inactivity, the relationship of inactivity and impulsivity, as well as determine an effective financial incentive value to motivate physical activity. While behavioral economics has researched studied other health behaviors among pregnant women such as substance use, physical activity has not been studied. Likewise, financial incentives for physical activity have also been well researched, however, effective financial incentives have not been studied in pregnant women specifically. This study seeks to better understand physical activity among pregnant women from a behavioral economic perspective.