BBT chart

A

Based on my BBT it says I ovulated 11/7, but my OPK’s suggest it was a few days later (during the weekend). I had low OPK’s followed by one high day followed by two peak days then on Saturday or Sunday back to low. So I’m not sure if I’m 12 dpo or less! You can see on 11/9 I went below cover line then back up. And also on CD 19 I had another dip then increase. Any ideas on when I ovulated? This is our 5th month TTC! (: