So i started spotting brown around 4.5 weeks then i stopped and then i got it again except it was more like brown discharge around 5 weeks 3 days and then now i have more brown discharge at 6 weeks 2 days. No pain or cramps, i know baby and i are okay, but i just want to know whats causing the spotting! could it be left over implantation? i never bled around the time i was implanting. Or is it somethig else??