Hi, I'm 24yrs old and i only had 4 sexual encounter all of which are oral sex (me giving blowjob for not mire than 10 sec. Coz i don't really enjoy it). 6 weeks ago the guy I'm with cum on my mouth, it wasn't a blowjob he was jerking so i decided to give him a blowjob but a soon as i put my mouth close to his penis, he suddenly cum making his semen (the 1st shot only) go under my tongue then after 10 sec. I wash my mouth. Now I'm worried i might be infected with STD. Do you think shoud i get std test?