Is this a cold sore or a fever blister?

Sexual health
1

im so scared to death my bf give me oral sex last night & he didnt tell me about this bump unil afterwards now i get tested for std & sti every other month im so scared to get gential herpes because he went down on me File size is too bigFile size is too big

2

File size is too big

3

I am no doctor, but it looks like it to me. Please get checked!