A little nervous

My HSG test is scheduled for Tuesday afternoon, and I have to admit as it gets closer I'm getting a little nervous. I've been anxious to get this test done for the past two months, but for some reason I've been worried about what if he does find something wrong? What happens then? My mind has been racing with all these thoughts, good and bad. Mainly I'm worried that he'll find something wrong and my dreams of having a child will be crushed. I hope this isn't the case and things will be fine. God I hope so.