<qa>  What is the only method that is allowed to be used for a minimum of 30 days prior2. Acceptable contraception methods are restricted to effective devices IUDs, NuvaRing or licensed hormonal products with use of method for a minimum of 30 days prior to vaccination, abstinence from sexual intercourse with men vaginal penetration by a penis, coitus, and monogamous relationship with a vasectomized partner. 