Why this cooch smell bad? 😩

Does anyone else suffer with BV days before period? According to my period tracker, I’m currently ovulating & it seems every month when I’m ovulating it smells really bad. I used boric acid suppositories and it’s not helping. I went to the doctor and she gave me a vaginal gel but the smell is still there.

I don’t douche, don’t wear tampons, wear granny panties all the time and take probiotics. What am I doing wrong?