In a sample of 345 women aborting at a New York clinic, women having a repeat abortion had delayed significantly less in seeking abortion than had women aborting for the first time. Those having a repeat abortion were more likely to anticipate, suspect and acknowledge pregnancy, and to have located the abortion clinic more rapidly, once the decision to have an abortion was made. Psychological reactions to the decision did not differ between women having first and repeat abortions. The complex interactions of many of the factors involved in the decision-making process were examined by path analysis. Variables entering the path analysis explained 36·0 and 52·4% of the variance in delay for first and repeat abortions, respectively. The analyses suggest that women having repeat abortions come from at least three groups: (1) those whose contraceptive method failed because of technical failure; (2) those experiencing contraceptor failure due to social and personal interactions with the method not conducive to optimal contraceptive practice, and (3) those women who are not practising contraception and for whom repeated unwanted pregnancies may be a response to neurotic needs.