Salam sayang! This sounds like it could be implantation bleeding or something else yang perlu checked out properly, please go see your doctor or visit a clinic ASAP, okay? Don't wait. Positive test + cramping + spotting needs proper examination, bukan something to guess online. Go lah, tak lama pun, and they'll do an ultrasound to confirm what's happening. Jangan worry sendiri je, doctor dapat tengok dengan proper. Rooting for you!