@adriandbabies, it’s not uncommon for the body to push out old blood few days before your period. It could implantation who knows, if it is in two or three days you can test or wait the days and see if your period shows up or not.

My last period was almost a month ago... idk if it’d last that long?

Could just be old blood mixed with discharge. Sometimes the body doesn’t get everything out and a few spotting can be seen in the next period.