Utter Devastation

Today is a really bad day. I am starting my period as we speak. I am just so down and all I want to do is go home and cry. I was praying so much that it would happen this month since we are scheduled to start procedures next month. I feel like God has let me down. I do not understand why he will not answer my prayers.
I have to call the RE and let him know what I want to do this month- the HSG or the IUI. Benji's results turned out mostly normal. He has a low morphology, but the doctor was not overly concerned. The RE recommended going straight to IUI w/o doing any testing on me. I pressed him about doing and HSG which he thinks it is unneeded, but said he would leave the decision up to me. My head says to go for the HSG, but my heart says the IUI. I'll have to call and let them know tomorrow. Right now I'm leaning toward the IUI.
If the IUI does not work I will be devastated. I know it is too early to think about it not working, but I will really have my hopes up that it will work and I will not know what to do if it doesn't.
I found out that someone else I know is pregnant. I want to be happy for them, but I just end up feeling terrible for myself. I just can't take this anymore. Why can't we conceive a baby?