Hello. My Ovulation Period Was Between The 30th And 03rd

Hello. My ovulation period was between the 30th and 03rd of September. I had a CT scan (dental - only head) without any protection on the 31st of august. I didn't know I was pregnant. It turned out, later on, I was pregnant. Due date 26th of May. Is there any risk that the CT scan has damaged my baby ? Thanks a lot for your advice, Maria