After adjusting for BMI and age, logistic regression analyses showed that serum prolactin ≤ 20 (ng/mL) (odds ratio [OR], ∞ [95% CI, 0.14–∞], p = 0.99), serum AMH ≤ 4 (ng/mL) (OR, 3.75 [95% CI, 0.70–17.35], p < 0.70), secondary infertility (OR, 2.64 [95% CI, 0.39–29.85], p = 0.70), infertility duration < 4 years (OR, 2.26 [95% CI, 0.58–8.28], p = 0.33), and baseline LH/FSH (OR, 0.93 [95% CI, 0.15–11.00], p = 0.95) were correlated with a higher prediction of clinical pregnancy in CC-HCG group. This evidence concerns the gene PLOD1 and Infertility.