This study (https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0217152) points out that women are more likely to have unprotected sex the more attractive the man is. Does that mean women are less likely to pressure a man to wear a condom when said man is an alpha because they don't want to annoy him with their demands for safe sex? It could explain why unwanted pregnancies are still relatively high despite all the contraceptive methods available.