Stimulation of ovulation combined with the clomiphene therapy and human gonadotropins is presented. Follicular maturation was followed by changes of the cervical score and ultrasonic folliculometry from the tenth day of the stimulating cycle. Ovulation was proved by the change of quality of the cervical mucus, the increase of the BBT, the increase of the progesterone concentration in serum, then by ultrasonically proved changes inside the follicle and in endometry, and finally by pregnancy. With the combined therapy the authors stimulated ovulation in a group of 14 females, altogether 21 cycles. In all the patients, before the application of the combined therapy, induction of ovulation with clomiphane alone through at least 6 cycles proved unsuccessful. Ovulation was proved in the 20 cycles of the combined stimulation. Altogether 11 pregnancies of all induced cycles were obtained: 6 pregnancies with term delivery, 2 extrauterine pregnancies, 1 spontaneous abortion in the 24th week, 1 missed abortion, and 1 blighted ovum. Two twin pregnancies were recorded. In one patient the syndrome of hyperstimulation of the first degree occurred, while in the others there were no complications at all.