Please.I need some words to calm me down.?

So next Monday I have a appointment to meet with a RE.I tried clomid and i ovulated but didnt get pregnant.I received a call today from the nurse at the Reproductive center asking me some questions.So now that monday my husband has an appointment before me for a semen ysis.And then we have a consultation.Im seriously terrfied.i guess what scares me the most is she asks if ive had an hsg.And i havent.people keep telling me oh the pain was horrible.please someone share your experience and let me know everything will be ok.I feel im working my self to death just to get this one baby.and i'll go through any pain.thank you..baby dust to all