If you had unprotected intercourse during your fertile window, there's a chance that you could be pregnant. Without knowing your cycle history and ovulation day, its difficult to provide good feedback. There are many symptoms of pregnancy, but these same symptoms can also be used for a different diagnosis. Therefore symptoms can be very misleading. For example, the yeast infection could just be a yeast infection, and the dark brown discharge could be the layers of lining from your previous period just now making an exit as a result of the infection. The best thing to do at this point is wait until AF doesn't show on the scheduled day, then take an HPT with first morning urine 1-2 days after. Good luck!
hey i never knew a yeast infection could be a sign of pregnancy but i looked it up and sure enough it is thats weird...i had a yeast infection i guess about a month or so ago and my af is now 16 days late it has never been late except when i was pregnant with my son(now 15 months) i have taken many hpts all negative and last monday the 24 i went to the doc for a blood test and it was negative also but i have also read that sometimes it just dont pick up till way later so i guess there is still some hope for me :) i have been experiencing many pregnancy symptoms headaches tired alot extreame hunger lol alot of discharge (not a yeast infection) boobs seem fuller well anyways i go to have a vaginal ultrasound to check for cyst and what not...hopefully they will find a baby :) ill keep ya updated. good luck