Help!!!!😫 when did I ovulate??

🥰❤Mother of 1🧒🏽😍 TTC #2

So according to all 4 of my APPS BBT charts I ovulated CD 21 (which makes me 10dpo), but someone on here brought to my attention that I could've possibly ovulated CD23 because its a higher temp then 6 previous temps... so now I'm confused. I did opk CD22 and it was negative but positive CD20-21 if I did ovulate CD23 then my chances of pregnancy is low?😒..PLEASE SOMEONE GIVE YOUR OPINON