Just trying to understand my body

At this point I'm pretty sure my body is not ovulating. I had a digital positive opk at CD 11 with all the signs of ewcm, and high, soft, and open cervix but no thermal shift. My temps went back down the next day. I kept taking opks which have all been negative and continued to temp. Now the last two days my temp has spiked, having lots of creamy cm, and cervix is high, med to firm, and closed. Which to me would mean af is around the corner. The worst part is FF hasn't been able to detect ovulation the last 3 months we've been TTC. Help please!!

Anybody experience temps being high but yet having all signs that af is around the corner?