the pill really depends on the girl. I knew someone where it really put her off and another it had no effect But if you use lube it will almost never break and it will help you get out any rut. (vaginal sex and lube = almost never break like 99.9% never) remember water base lube or you'll kill the condom and it gets messy. but stress in all my experiences is worse then the pill. especially the slow grinding stress of a tough higher education.