Can someone take a look at my chart?

Today is CD43, my last cycle was 42 days long but I wasn't tracking anything. This is my 4th cycle off of BC, and 2nd time TTC.

opk peak was on CD22, but it wasn't a true positive. However, I stopped doing OPKs because I got the temp rise so I believed that I'd confirmed O on CD24.

But I'm starting to wonder if maybe I O'd on CD30.

Either way, BFNs on CD38 and 41. Temp is still increasing. I know that birth control and previous pregnancies can change things, but last time I was TTC with DS#2 I always had a temp drop 2-3 days before AF came.

Anyway, pardon my rambling. Just wanted to see if anyone has any observations to make about my chart!

Thank you :)