Spotting

I have been spotting for about 4-5 days now. I am approximately 5 weeks along. The spotting was first just when I wiped but is now enough to see in my panties. I don’t need a pad and hardly need a liner. It looks mostly like old blood (brown no red at all). Do you think this will result in a miscarriage? My doctor won’t see me until my ultrasound Monday but I’m going crazy waiting that long!!!