I know that antibiotics can damage the effectiveness of the pill, but does it make completely ineffective? And if so, they start working after 7 days again? I am taking antibiotics for my sore and swollen throat for about 3 days and I am not having sex without a condom even if I'm on the pill anyway, but I am just trying to be as safe as possible and I'm still paranoid after the condom broke a month and a half ago.