Which is the Best Contraceptive: Condoms or the Pill? Based on the fact that approximately 6 of every 10 pregnancies in the United States are unplanned, it should be obvious that we should be using contraceptives more often and that we should educate ourselves as to which is the best contraceptive. Two of the most commonly used forms of contraceptives are condoms and the birth control pill. But which is better? In order to determine which is the best contraceptive we must look at its effectiveness of preventing pregnancies, its abilities to prevent STDs, possible side e