Does it look like the start of something

start of something ? I'm retesting fmu but the line appeared within the time frame but is very faint ... period was due 10th ... started spotting brown 8th lasted a few days quite heavy at times but not a normal period it's all been brown untill this morning and was pink ... I'm thinking maybe a chemical pregnancy I misscarried 10th Nov tested with fmu a few days ago completely neg so I need opinions I'm going to take the faint positive into the doctors in the morning and ask what he thinks it's clearly visible on person and they look like the positive I had last time which ended in misscarrige I'm quite concerned at 5 he moment x