Advice!

Tajia
6 weeks pregnant and yesterday after being on my feet for 13 hours (I'm a nurse) i got home and noticed a little brown discharge. No pains or anything. Went to bed and this morning the discharge is back to regular color. I'm going to call the doctor but I have an appointment Monday and work today so they can't see me until Monday anyway. Anyone experience this?? I'm kind of freaking out