Unprotected monogamous sex std scare

I’ve been having unprotected sex with my bf for a month now and we both tested for std’s in the beginning of our relationship and we have none. On fourth of July we had sex and now I have these tiny white bumps on my vag. They look like acne but they’re not really itchy, should I be worried? This never happened in the month we’ve been having unprotected sex. It’s just now happening