One hundred and thirty-four patients received artificial insemination with fresh donor semen (AID). Using the life-table method of analysis, 72 pregnancies occurred, yielding a crude conception rate of 53.7%. The 134 women received an average of three inseminations per cycle for a total of 1,282 inseminations near the day of ovulation. The majority of pregnancies occurred by the seventh cycle. Forty-two pregnancies were achieved using a single donor; 30 pregnancies required changing the donor once, twice, or more. Among 42 patients who subsequently were treated with clomiphene citrate, 16 conceived. Two of these patients became pregnant after receiving hMG and hCG additionally. The life-table analysis of cumulative pregnancy rates following infertility therapy provides a relatively simple, powerful, and reliable tool for evaluating the effectiveness of therapy and its benefits. Patients should be advised that their chances of conception with AID approach that of normal fertile couples, provided that these patients persist in their treatment.