The objective of this study was to evaluate the influence of the degree of uterine and ovarian development on the pregnancy rate of Girolando heifers submitted to Timed Artificial Insemination (TAI). 56 heifers, representing 100% of the category in the herd studied, were evaluated. Prior to hormonal treatment, the heifers were submitted to a gynecological evaluation employing ultrasonography, in order to measure the diameter of the uterine horns and ovaries, as well as to evaluate the presence of corpora lutea (CL) and antral follicles. Based on the finding, all animals were classified into three scores and subsequently submitted to TAI. There was no statistical difference (P>0.05) in pregnancy rates between the different uterine horn and ovarian scores, as well as in relation to ovarian structures. However, a statistical difference (P<0.05) was observed in the percentage of animals in anestrous within ovarian scores one, two and three (83.3%, 37.5%, and 42.8%, respectively). Concluding, uterine and ovarian development did not interfere with the pregnancy rate of Girolando heifers in the herd studied.