My Boyfriend And I Have Been Having Unprotected Sex .

My boyfriend and I have been having unprotected sex . I've tested twice and all my STD results are negative and so are his . He's uncircumcised and has red non raised spots on his or is . They are tiny , but he says they sting a little . I think I have bacterial vaginoses or a yeast infection . Could this cause an irritation with his penis ?