Stressful morning!!

A
Woke up with a fair amount of brown spotting so I went to see my OB she did a scan and baby is fine (I'm 9 weeks today). She also did a culture of my fluid and said I have a yeast infection and she perscribed me monistat 7. Now I'm stressed about using this medicine so early in pregnancy. I know I should trust the doctor but am now reading horror stories. I don't have any itching just increases discharge. I already inserted one of the suppositories and now I'm a nervous wreck. =(