BV and spotting?

Dedra • Baby #3 Loading
13 weeks 4 days and last week I was diagnosed with BV...dr gave me 7 day supply of anit biotics!! This is the 7th day and I noticed yesterday some light spotting every time i went to the bathroom and I've been noticing it today also! Its very pink! Could BV be the cause of spotting still? I made a DR appointment for Monday! Can BV cause miscarriage?