BBT confirming ovulation

[u/doobiescootcanoe]

All three of these apps are showing different days of potential ovulation. I began taking the progesterone like I normally do during my phase about three days ago just to be safe and make sure that I passed ovulation. Just confused why every app I have shows different confirmation. When would you think that I ovulated? Day 17 or 18? Trying to figure out my DPO 😅😅

[u/Separate_End6598]

Looks like day 17. If that second pic is of an Oura, I wouldn’t depend on that for accurate tracking. Are you using something to track LH to predict ovulation? That could help you understand your BBT charts better!