Traumatized due to transvaginal scan

I’m in my first trimester of pregnancy. At my first OB appointment, they said I would need a scan. I thought it would just be an abdominal ultrasound, but when I went in, they told me to take off my panties and lie down. Then out of nowhere, they put this big probe thing inside me. I wasn’t expecting that and screamed from the pain. I don't think they even used any lube on that probe. The technician asked if it was my first time, and I said yes. She said be ready you will need more scans like this. I was like WTF.

For my second scan, they did the same thing (TVS) and it was just as painful and uncomfortable. My vagina was dry as a desert, so it felt awful. The technician even got annoyed and asked why I was acting like this. I felt so bad and wanted to cry. I have been upset ever since. I don’t know why this is so uncomfortable for me. Is it just me? I’m really nervous for my next scan. Any tips to help with the pain?