Boric acid while TTC

TMI) I almost have to use these after my partner cums in me because my recurrent BV is so bad. Antibiotics barely work anymore and make me super sick. has anyone used them right around conception and the baby was fine? I just use one the night after he cums in me. Usually that’s all I need to prevent an infection. I know this is controversial & if you’re just going to say don’t do it without having gone through this please don’t bother.