Dont know what's going on...

According to my calendar, this is my fertile week. I've taken opks ALL week and have gotten negatives. I took one on Thursday and got a faint positive, it was so light it could've been negative. I'm now out of opks and now I'm charting by bbt and my CM..no spike in temp, my cm is creamy like lotion, kinda medium amount. Still BD anyways..lol. Not even sure if I ovulated earlier or maybe I will ovulate later.