cat scan ? Doctor stupid ? please help

Katelynn
I had really bad pain went to the dr and they did a cat scan I'm scared it could of affected the chance of me being pregnant I'm 9 days away from my expected AF the doctor said it could cause trama but since my pregnancy test came back negative that I was fine!! I'm still 9 days away I mean couldn't I steal be pregnant it just wouldn't show becuase I would be way to early !! Help I'm dying !