I Am Having Pcos And My Age Is 29 And

I am having pcos and my age is 29 and my husband 28.I was recommended to take siphene 100mg from the day 4th and also given an injection and one more on 22nd of this month(22.03.16).Then IUI will be done on that weekend i think.Doctor had told earlier that, there is no problem in my Fallopian tubes.After egg releases,then it gets ruptured and then doing IUI.What is the success rate in this procedure? I should become pregnant this time.Otherwise doc had asked us to go for test tube procedure!!!!!!!!...Please suggest