I had sex with my boyfriend last night and noticed some mild burning...this morning I woke up and it was worse with some mild itching. It seems like a yeast infection. My question is can he contract it from me just having sex that one time. We don't use condoms, i'm on Mirena and we're both 100% faithful. Since we just had it that one time and symptoms weren't full blown what are the likelihoods of him catching it? Can men even catch it?