iui second attempt

Hi all! Can anyone tell me if u had success with iui and gotten pregnant.. it's not about me, it's about my friend and I really wish that she will conceive with this procedure.. she has been ttc for two years with no success.. she is going to get iui for the second time and both she and her partner do not have any fertility issues.. plz tell me any success stories of iui second attempt.. it would be even helpful for me to boost my friend's confidence... I put this post in another group also, but did not get any response... thank u in advance!