Terrified something will go wrong


My husband and I have an almost five year old son and decided to add to our family. BFP on Thanksgiving morning! I am ecstatic but also terrified. Not only of the changes a new baby brings...but what if I never get to hold that baby? My first pregnancy was healthy and my son was too. The birth was vaginal and not too difficult. I am 28. So, I shouldn't be too high risk. But since I had no problems before I am just SO worried something will go wrong. A life threatening deformity, no heartbeat, anything. Evan though I'm feeling aweful and it's hard to be happy anyway, I am just so afraid to be happy and excited because something could go wrong. How do I shake this?!