Terrified of sex.

My husband keeps giving BV to me when we have sex. I told the doctor and they say our body chemistry doesn't like each other. I refused to have sex for nearly the past 3 months but I'm unsure of what to do because we want a baby. I don't want to have sex with him though. I tense up all the time and tell him to wear a comdom just so I don't catch that god awful infection and it's causing major problems.