5w4d spotting... plz help

Erin

Ok so I am 5w4d and just now had a little bit of brown spotting. Wasn’t too worried about it but now I’m kind of crampy and had some light red blood when I wiped. I’m starting to freak out. I have my intake appointment on monday at obgyn. I always bled really heavy with my periods... could this be the embryo implanting more or does this seem like miscarriage