Advice PLEASE

I haven’t had sex since May 5th, and got my period both in May and June. Now I’m 4 days late and just the opening of my vag is burning, if that makes sense. I’m also dry like a desert. We used protection and he said he was clean. Should I go get tested, or do you think it’s simple like bacterial vaginosis?🤦🏼‍♀️ I burn on and off. Sometimes just an hour a week, or a few hours every once in a while. Never lasts and always seems to fade...