BFP after three days of spotting and negatives before?

Torey

Is that possible? Earlier- on Saturday I was getting BFN tests, and then I started spotting. I have continued to only spot for the last three days. I don't understand. This is such a light period of it's a period...is it possible it could be too early for a BFP but I am pregnant? Should I be worried otherwise? I know that thin lining can be an issue and not allow us to get pregnant...I don't know what to think and would appreciate some help!