Confused!! Thoughts on O date?

Pris

I'm trying to see if anyone else has any input on possible O dates? Based off my Ava bracelet chart- it looks like cd 20. But based off my bbt charts, it looks like maybe cd 21 or 22? I haven't been able to figure out from charting my bbt if I have a temp delay or not but now with the differences in dips in these two charts, I'm confused on which my possible O date could be! :(

J