BV , PID , Infertility

I have been ttc for almost 2 years I was diagnosed with unexplained infertility, I am having laporscopic surgery for endo in a month I’m extremely nervous but excited.

I recently read an article about bv turning into pid, I had bv for about 8 months before I had it treated with metrozole gel A year ago (I didn’t know I had it) . I’m nervous that the bv turned into pid . I have had multiple pelvic exams and sonograms and everything is normal. My HSG showed no blockage.

I have no Symptoms of PID but I’m freaking out and now more nervous for my surgery.

How long does it take for untreated BV turn into PID??