HELP. What does my bleeding mean?

I was on pills (diane 35) and finished my set last July 3. I should have started on July 11 for the new set but I decided to stop. Had unprotected on July 5 (during my 1 week rest) and last July 17.

Today (July 19) and yesterday, I had spotting/light bleeding. Brown/dark red. What could this mean? 😭

Because I stopped on pills?

Am I pregnant?

Is this just ovulation bleeding?

Here’s my calendar.