Brown discharge

I know it's normal to have it , but is there a point where it's not normal??

I didn't have it until I got my vaginal ultrasound at 6w5d , I am now 8 weeks today and still getting it. I only get it during the day but it's not much. Just enough to discolor my undies. It's not dark and it's not in clumps. Sometimes if I wipe more than once it goes way.

Please tell me this is normal!?? I had a chemical and I remember having brown discharge all day everyday and I'm hoping there's no connection to a miscarriage.

Will it go away at some point? My next dr apt isn't till the 18th.