Which one should I go off on?

I'm to scared to take a pregnancy test if im 2 days late if my AF suppost to start on 7/26. 

 

I don't know wen I ovulated. Because I didn't test the ovulation test to see if I did ovulated. I test here and there. But I BD every other day til last night. My temp is all mess up. Smh. Last time I got my period was on June 22. I'm 34 cycle day.