Hormonal contraceptives may influence how women remember negative emotional story information.

“Recent research suggests oral contraceptive use is associated with altered memory for emotional story information, blunted stress hormone responses to emotional stimuli, and altered structure or function of the amygdala and hippocampus. (…) oral contraceptive users remembered relatively more positive than negative items compared with nonusers and men on the spatial memory test. This effect was driven by oral contraceptive users recalling fewer negative items than free cyclers. The results indicate that hormonal contraceptives may decrease immediate recall of negative emotional stimuli.

Person, B., & Oinonen, K. A. (2019). Emotional Memory in Oral Contraceptive Users: Negative Stimuli Are More Forgettable. Psychological Reports.