PLEASE HELP - IS THIS NORMAL

ok so uhh my period isn’t due for another 5 days, but rn when i took of my undies i see that they’re covered in blood (not a lot but like it’s very noticeable), and normally id just shrug it off as an irregular period because that happens to me, but the blood is a kinda browny colour, is this normal? and i’m not actively bleeding it was more like a short burst of blood if u know what i mean