You would have to get a throat culture to be sure if it is or isn't. It could be strep, tonsilitis, or irritation from post nasal drip (allergies). We can't tell you if it is or isn't. You have to see a doctor for that. Your sore throat could be purely coincidental.
The same thing has happened to me and I have gotten really scared for nothing, it has just gone away like a normal sore throat