Probably having a chemical. When will I start bleeding?

Allie • Married since 2013 💍

So I got a very bright BFP on Sunday at what would have been 4 weeks and 1 days. I took two more yesterday and they seemed to be getting lighter. I had an appointment with my doctor this morning and her urine test came back negative. I am devastated. She did blood and I will get the results in the morning. When I got home I took another test and the line is barely there. My question is when I will start bleeding? I’m 4 weeks 3 days.

Top two on Sunday, bottom two yesterday

Today. It is there but super faint.