The best thing you can do is go get tested. Your sore throat might be from an std, but since most oral/pharyngeal stds are without symptoms, you might have something like strep throat.
If you have an std in your throat, it will not lead to infertility.
Aj
im no physican or anything just a 14 yr old boy who lost his virginity and is trying to find away to sneak out and go to planned parenthood to get tested but, i do know for sure becuase ever sence i lost virginity ive been researching everything like crazy and every std has to be clear by antibiotics or a medication unless uncureable std but the symptoms do clear sometimes. but the virus is still there untill treat it. so id'e go get tested. and now i continue to find answers to get tested with out being caught by parents. and i would think the chances are slim if the male didn't ejaculate because u would have sperm in ur throat and thats worse i suspect. but dont trust me too much i never researched oral sex and ejaculation making it worse. Peace! and good luck!!!