Hi,
Welcome to the ehealthforum and I am glad to help you out.
According to American pregnancy association, during pregnancy physicians recommend vaginal creams and suppositories only for yeast infection. If left untreated, yeast infections can pass to your baby's mouth during delivery. Moreover, it may take 10-14 days to find relief or completely clear up the infection while you are pregnant.
I suggest you to get it evaluated from a gynecologist to confirm the diagnosis.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care.