So confused! TMI WARNING

Y’all I’m suppose to be 6 weeks pregnant & I won’t get any blood work done until Monday. I have already taken 3 pregnancy test just to make sure I was still pregnant but I read that even if you’ve had a miscarriage the tests would still say that you are pregnant....Just now I found what it looked like to be brown blood...does this look like it could be an impending miscarriage??