Not ringworm. It could just be an insect or bug bite that is healing. No need to worry.
Ringworm often forms a ring-shaped rash but it can have a red center or normal skin tone inside the ring. The rash usually has raised edges and comes with scaling, itching, or blisters.
Thank you so much! It’s healed up since I posted but it does give me a piece of mind to know I shouldn’t worry!