Contraceptive pills protect the woman from unwanted pregnancy, but do not protect her or her partners from STDs, which can have severe health consequences. The use of double protection is thus not superfluous when you are not sure about your partner’s health.

Consistent and proper use of a condom greatly reduces the possibility of contracting any STDs. A smaller number of partners means a smaller probability of sexually transmitted infections, while the faithfulness of two uninfected partners is the best protection against infection.