Spotting or is it a light period?

Ok. So I posted earlier and can't seem to find it. My period is regularly irregular normally. I get it between the 4th and 10th. Normally at least one day that is fairly heavy.

I have been experiencing spotting or light pink when I wipe after peeing. It was first noticed before the 4th and was slightly more brown with some musus for lack of better words. Now, it is on and off when I go to wipe and see faint pink. I did take a pregnancy test around the 4th and a couple days after. Both negative. Only symptom I could connect is headaches about a week ago. I never get headaches. I could still potentially get a full flow by the 10th but this whole pink after I pee (almost faint orange sometimes) is totally throwing me. Any advice!?