Infection after miscarriage? Or normal?

I'm about 2 weeks post induction/delivery after a miscarriage at 21 weeks. I stopped bleeding the other day, but I've had some light pink and now a yellowish/greenish discharge. I can't tell if it's just leftover dried blood or possibly an infection. I do have some cramping, but I don't know if this could be the pelvic pain they warn about when you have an infection? Anyone think this sounds like an infection or just leftover blood? I'm so paranoid about getting an infection.