Clomid and IUI

Hi everyone! I'm 29 and my husband and I have been ttc for almost 2 years now. We have been through all the infertility tests and found no reason as to why we haven't gotten pregnant. So on Tuesday I will start my first round of clomid with IUI. Does anyone have any experience with clomid and IUI? Advice or success stories?? I'm nervous but cautiously optimistic, we will see!