DPO14 Spotting and very faint BFP

Hi there,

Wondering if anyone has been through something similar and can share their experiences? I did a pregnancy test DPO11 and got a very faint line, tested again DPO12 and received a faint line that was the tiniest bit darker than the first test. I tested again today DPO14 and the line is so light that you need to hold it a certain way to see the BFP. I also had red spotting only when I wipe which has now turned into a pink brown colour. Is this a chemical pregnancy?