Weird temps. .. did I ovulate?

I'm so confused. High opk from CD 13-15 then peak opk on CD 16 and 17. I had ewcm and soft, high, open cervix. Glow and FF say that I ovulated on CD 17, but usually my temps rise higher, and then the past 2 days my temps have dropped lower than they've ever been. If I did ovulate CD 17, then 4 or 5 dpo would be too early for implantation dip, right? I'm not even convinced that I ovulated. Could my body have geared up for it, but not actually ovulated, even with all those signs? I'm so confused and frustrated. I thought I finally got my timing right this month with BD.