2 days late, yet still BFN

My period is always on time, always to the day. Today was supposed to be the second day of my cycle, but AF is nowhere to be seen, however I have a white/yellowish discharge (sorry for the TMI) the whole day to the point that I thought that AF arrived several times throughout the day. I've had mild cramps in the morning, now nothing. And I tested this morning and got a BFN.

Is there still a chance that I will get a BFP? I know that I might be late because I am stressed over TTC, but it's weird for me because I have never been late before, not ever! I'm so confused 😕