I need advice!!!

7dpiui I had literally a spec of red blood.. same thing 8dpiui. (I would have never known if I didn’t put my finger up there to really wipe I just was curious) then nothing.. only happens in the morning when I first wake to pee. Then same thing 10dpiui. And now I’m 13dpiui and I just saw same thing .. I’m a little concerned because I never had that in my life and I’m supposed to get my period today. I took a cheap test at 12 dpo and it was negative? Has this happened to anyone I’m really concerned