PIP: In a sample of women presenting for postcoital contraception in central London, 2 main categories of women were apparent. The 1st comprised those having regular intercourse: the majority of these had experienced a contraceptive method failure. Many of the 2nd category had used no contraceptive; they were often having intercourse for the 1st or 2nd time with a new partner, for the 1st time after an interval with an existing partner or for the 1st time ever. Many women had experienced difficulty in finding out where they could be treated but were persistent in their efforts to obtain the necessary expert advice. Almost all had used contraception in the past. Acceptance of a contraceptive method for future use was high.