I had got several faint BFP's on quite a few HPT, but they did not get darker over the days. My first faint positive was 3 days before I expected af. Went to my on gyn and they did a urine test which was negative and did blood work. That day I started cramping and bleeding. The next day my blood work came back and my hcg was 2. Does this sound like it was a chemical pregnancy?