Although abortion was illegal, it was nevertheless the most widespread form of birth control in use. Used predominantly by working-class women, the procedure was used not only as a means of terminating pregnancy, but also to prevent poverty and unemployment. Those who transported contraceptives could be legally punished. Contraceptives became more expensive over time and had a high failure rate. Unlike contraceptives, abortion did not need any prior planning and was less expensive. Newspaper advertisements were used to promote and sell abortifacients indirectly.