nervous for anatomy scan

did anyone else deal with nerves going into your anatomy scan? i’m really excited to see how big our baby is but i’m really nervous something will be wrong. I have ptsd from my dad passing away when I was little and ever since then I always expect something bad rather than something good! Any advice would help!!

Edit: I’m going to edit this post and say I was diagnosed with PTSD, my father got murdered in front of me when I was 7 years old. I call every single family member to make sure their not dead EVERYDAY. When my husband was in the army I cried everyday because I thought he was dead. The list goes on and on. Just because I didn’t go into depth as to why my fathers death triggered PTSD in me doesn’t mean i wasn’t clinically diagnosed with it. Thanks.