Does anyone know what this could be?

I’m about 4DPO (not actively trying as it’s too stressful and disappointing lol)

And my CM was super sticky with no stretch to it (it would ball up easily) but I looked and it had a bit of pink added to it.. not a lot but enough for me to notice with the light. Is this maybe ovulation spotting? When I wiped nothing. I did have cramps a couple of days ago