BFP but negative blood test

Sa

Ok so I'm currently 11 DPO and I got a faint positive yesterday. I immediately called my dr and went and got a blood test since I've had 2 previous ectopics. The dr called back today and said my beta was only a 4 so I'm technically not pregnant. She said to test again in a few days and call them on Monday if it's still positive. Here are my tests from yesterday morning, night, and this morning. What is going on???