Harry Potter Adventure

You look into your closet and pick out an outfit you had chosen the night before. It was a green military jacket, maroon circle scarf, oversized t-shirt, and brown combat boots. You had gotten it as an early birthday gift from your aunt.

Outfit:
https://i.pinimg.com/736x/53/18/cb/5318cb419af7dbde046bf2325b3e1a2c--military-boots-outfit-brown-combat-boots-outfit.jpg

After freshening up, you head downstairs with a skip in your step.

What is your blood status?