you mean birth control? it mimics a pregnancy, then miscarriage. during pregnancy, women prioritize safety, so they become avoidant of chads and more tolerant of beta bucks, who she'll likely home with and have kids. it has big consequences, because she's not actually attracted to the beta, so when she goes off the pill in order to get pregnant, she'll do what 1/4th of women do and cheat with a chad to get his sperm then let the beta raise it as his own,  or  she'll get pregnant by the beta, get depressed, hate the kid, and possibly commit infanticide which will be labeled as sids.
United States