I'm going to my 20 week scan alone and I'm scared.

Ra

I just got the news that my husband miss scheduled something important at work and won't be with me at the scan. I understand but I'm so nervous about getting bad news alone. Anyone know the statistics of something going wrong or can anyone reassure me that it'll be ok or if something is wrong it'll be minor and probably resolve itself or be cured soon after? It's my first and a rainbow so I'm just a little anxious.