The frequency of clinical pregnancy per cycle was significantly greater in patients who were treated with hydrotubation and clomiphene citrate ( nine pregnancies per cycle [ 13 % ] ) than those treated with clomiphene citrate alone ( two pregnancies per cycle [ 3 % ] ; odds ratio , 5.3 ; 95 % confidence interval , 1.1 to 25.5 ; p 0.05 ) .