IUI Tomorrow

I guess I have been waiting for the rug to be pulled out from under me, however everything has been going smooth concerning my cycle. Tomorrow is our IUI and I feel really good about it which scared me. The follicle is at 2.6 with my lining at .8 which is a huge jump from yesterday.So I have the day off tomorrow to relax after the procedure.My parents have set a mass for 8am for my brother tomorrow as well. I will be able to meet them there now that I have the IUI schedule for 10:30am. I so want to tell them that we are trying again, however everytime it does not work, my mother gets so crushed...like loosing my brother over again.Please send plenty of prayers to make sure that this works.Thanks