5 days late. No bfp

Grace

I've been nauseous for about a week and a half now. Took a pregnancy test the day after my missed period and nothing. Waited 2 days and still nothing. Here I am 5 days later and I'm not testing because it's so disappointing but I still am constantly nauseous. I am working on ridding myself of a yeast infection (responding well to a 3 day treatment) but I've had a yeast infection and gotten my period on the same day before and never effected it. I know every time is different but what are the chances that the first month we are ttc I get a freaking yeast infection?! Super frustrating! I ovulated 1 day after glow predicted so on day 15 of my cycle I believe and have been having a very regular cycle off of birth control. I know I'm not pregnant but now I'm not sure how to figure out my next ovulation if I didn't have a period this month. Confused.