Scared/nervous advice please?!

I just found out that I am pregnant yesterday and my husband has already started to tell people. He is so excited about this baby. I am so scared and nervous that I'm going to loose it. I know that its common to loose your first baby and that our TTC journey doesnt help my chances. Im all crampy and achy and I'm just waiting for AF to show up still. Idk what to do...... any advice??