You are not bad at all...trust me.
Ok thanks by the ways sorry for being a pain lol never had anything like this before and I'm a bit of a worrier lol
It is possible. But again, the vagina is a very sensitive area. You could have had a reaction to a soap or maybe the sex was too rough. Maybe you got a yeast infection. Who know? Burning in the vagina is a general symptom of just about every infection that can occur in the vagina. It's like sneezing...when you sneeze, it doesn't necessarily mean you are sick. It can be a momentary irritant, an allergy, a cold, the flu. Unless you get other symptoms, you simply do not know what it is. And then you still don't know until you see a doctor to confirm it.
Because you had unprotected sex, you were definitely at risk but nothing can be inferred with your only symptom being burning. You should see a doctor either way to be sure. Only testing can confirm or negate any std's.
I had unprotected sex last month though and it has only just started do you think it sounds like one???
No. All std's can possibly cause burning. So can many other conditions of the vagina that are NOT std related. See a doctor for a proper examination.