I took a single dose Diflucan pill in my ring free week, three days before I was supposed to insert my nuvaring. I forgot about checking to see if Diflucan interacts with birth control, and my husband and I had unprotected sex 6 days after I took the Diflucan pill. I have been experiencing some light brown discharge and some abdominal pain, but it is not close to my period. It is too early to take a pregnancy test. I have read mixed messages about Diflucan and I dont know if I could possibly be pregnant or if I am having other issues. Thank you for your time.