Ovulation Expert Needed!! HELP PLEASE!!!

So I think I am calculating my ovulation incorrectly. Please help!

This calendar is from September-I’m using this one because I Conceived one of these days- it was a chemical pregnancy.

September I Conceived. Confirmed by blood work from my doctor and many faint positive pregnancy tests. Then got my period so it clearly didn’t hold. See next picture for October.

October- got my period only 2 days late. So now here is my question when do I ovulate?? I have been missing my high/peak fertility days the last 2 months. I use the digital test which are expensive so I use them only 2-3 cycle days. Next month I will test everyday but can someone HELP. I’m terrible at figuring out this schedule apparently!!!