Could my dates be off?

Hello ladies! I am having some trouble deciphering this bbt chart. My ovulation date moved a lot this month and I know enough not to completely rely on the dates the glow gives. I have been temping religiously and using OPKs frequently to try to nail down that ovulation date. I got a positive opk on the 19th (CD 15), but I’m not convinced that I actually ovulated that day. In charts from previous months, I have been able to tell very clearly where I ovulated based off of my temps, but not so much this month. It was only yesterday when Glow notified me that they registered a temp spike which might indicate ovulation. Does it actually look like I ovulated on the 24th (CD 20) instead of the date on the chart? My chart for the current cycle is below. I would love any input you have!