Chart interpretation

[32Number3]

I was hoping some of you might be TTC experts that could help me pinpoint when I might have ovulated. I can't post my chart because I haven't had 10 posts yet, so I'll try to describe my chart.

CD 1-7: AF
CD 12-18: EWCM
CD 9-14: Negative OPK
CD 15: Blazing positive OPK
CD 21: Possible implantation dip
CD 24: Triphasic temperature shift began
CD 24: Super faint (can only see when tweaked) positive Wondfo
CD 25: Easy to see positive Wondfo
CD 26: Clear positive on Wondfo, confirmed with clear positive on FRER
CD 25: Implantation spotting started
CD 27 and beyond: darker and darker BFPs

I know I ovulated sometime from CD 15 to CD 18 based on the positive OPK and the EWCM, but my temperatures were completely erratic around this time and I have no idea which day it was. My "thermal shift" actually happened on CD 14, before the positive OPK, then my temps went downward from CD 16 to 18 and back up on CD 19.

But I couldn't have ovulated on CD 18 if I already had a super faint positive test 6 days later and a clear positive test 7 days later, right?

I'm so confused.

I know none of this really matters, but I'd love to know my due date!