Help! What is going on?!

Okay let me start by warning this is tmi. But I have nowhere else to go for help so I'm hoping that someone here may have more knowledge.

My period is due today! Lucky me. Yesterday I had brown spotting. Not a ton, but it is soooooooo unusual for me. I never have anything brown. My standard period start out with red spotting and then just come in like a wrecking ball right after. So the brown spotting yesterday was strange.

Around 1am I woke up and had some light bleeding but as I said nothing in comparison to what I am used to.

Now when I woke up this morning it's back to being brown.

I know that the chances of me being pregnant right now are so slim. As much as I want it, I am tying to be realistic. But if anyone knows what is happening I would so appreciate any and all info!

Thanks!