What’s going on? 😤

It has been 55 days since the start of my last period - meaning it is late by 30 days. I called my doc and we made an apt for May 29 to see if I may have PCOS. No positive pregnancies, I can’t find my ovulation days, nothing. So I make the appointment and that night I start feeling crappy and a little sick to my stomach. I wait until the morning to do any tests and I wipe and there’s like a brown cream-like substance on the tissue with some “bits?” in it. I wipe a couple of times and this shows until I wipe clean. But none of it seems like blood at all, not even old blood, or at least the texture doesn’t look like it. Forgot to test, but no big deal. I wait it out all morning and most of the afternoon with some very mild-type cramps. Nothing to be concerned with at all. Finally go pee and test for both ovulation and pregnancy. Both are veeeeeery negative. When I wiped, the brown was gone, but my tissue was very cream-like still with a slight yellow-ish hue to it. I’m still feeling some light cramps. Is my period coming at last do we think? Has anyone had this happen before? I just want my body to give me some answers!