HELP!

Okay so I have always had a sensitive vagina. I’ve always been prone to yeast infections however recently it seems to have switch from yeast infections to Bacterial Vaginosis. It seems like every time my partner & I have intercourse, a couple days later I have BV. We have both been tested for stds. We have been together for 5 1/2 years. After intercourse, I always go to the bathroom & clean myself up. At first, I’d go to the doctor & get antibiotics but it got where it was taking up too much time so I found some boric acid suppositories online & ordered some. I use them every time I start smelling myself & it often goes away the next day. However, I’m tired of constantly having this issue. Is it possible that my partner & could be passing it back & forth to one another? He has no symptoms, although I’m not sure if he would have symptoms. We are ttc baby #2 & I need this problem fixed. 😩 please help if you have been through the same situation.