Diflucan

Hi I was prescribed diflucan to treat my yeast infection that got worse after a few days of waiting and trying other meds.

I had BV about a week ago and metrogel made me react stopped before fifth night and developed a yeast infection. Waited after eating yogurts and taking probiotics. I’m allergic to monistat and the generic forms of those so my ob recommended a script of 150mg of diflucan. I’ve been going crazy over this because I don’t take ANYTHING beside prenatal and multivitamins. I took half the diflucan pill not sure if that’s okay to work something…I’m 21weeks and 6days and really need hope and peace of mind that I’m ok to take whole thing today or tomorrow.

Second trimester anyone ?