BV and miscarriage

How many women miscarried because of BV? I've been doing research and found out that it can cause miscarriages and preterm labor... I was told I had it at 8 weeks given some cream and at 13 weeks I still had it. I used the cream as told and it still didn't go away. I lost my baby at 15 weeks on January 30, 2017... Has this happened to anyone else? Not saying it is what caused my miscarriage just what I believe caused it... Because I do not do drugs, I dont drink nor do I smoke. I did everything the exact same I did with my first pregnancy and she is a healthy 1 year old. The only thing different was I ended up with BV and was sick ALL the time...