tmi pic. 8 days late

so I'm 8 days late for AF. I still haven't tested yet, but I have been nauseous, had very sore breasts mostly on the sides, & cramps that don't really feel like AF cramps. well a little while ago I went to the bathroom & when I wiped I had this. 
It was literally only that time because I just went to the bathroom again & nothing. even checked my cervix & nothing but normal creamy cm. what do you think it could be? I'm trying to wait to test until Monday.