By BV do you mean Bacterial Vaginosis? If so I had it for many months and it does tend to reoccur if I am run down but I was fortunate not to have it during pregnancy. I did spot for months with it. The spotting was coming from the skin (peri etc) the skin was so fragile just a wipe with dunny paper, towel etc would start it bleeding. I'll wait for you to confirm that you mean bacterial vaginosis before I go into a spill about it.