Ovulation not sure!

Good morning girls,

I have attached screen shots I have a 26day cycle it seems,

I had sex on Monday 17th and 19th August with my fiance, then again last night which predicted by glow is my ovulation day well last night we had sexual in course 5 mins later I got up too clean up and I had pale pink spotting after 2 wipes it was gone and not had any since, but yesterday morning I had diarrhoea twice yesterday morning and pain in my stomach all day very sharp, this morning I feel really sick I usually get tired around about 2 o'clock every day aswell I have dull pain in my ride side any idea girls what this may be as it's different from what 8 have had before

Thanks, ❤️