I'm so confused :( faint line hpt/ neg blood

Kaytee • 👩‍👧👨‍👧‍👦 expecting our 🌈9/30/18💚

I've been getting faint lines for almost a week now and today I got blood done and it was negative. I even got a faint line this morning. What's happening ?! Has anyone else had this happen? Still no AF either.