Help!

Kristen
So I had my period 2 weeks ago. Then I started spotting a few days after I was done with my period and have been for almost a week and a half and it's been getting to be a heavier flow. I took 3 tests. All had a faint line right at the last moment. Then I got the digital and it says not pregnant. What is going on? It could not have been an evap line that early. Is this a possible miscarriage?