A week late but negative tests?!?

Ashley 👼 🌈👩🏻‍🍼

I don't understand! This was my first time ever trying to convince and when I was late, I got my hopes up but it was negative. I was fine and I understand it takes time but now I am concerned because I have never been late like this before? In 8 days I have had no period symptoms and only one tiny spot of dark blood. What does this mean? Should I call my OB? I have taken 5 pregnancy tests and 3 we're different brands.

Any advice would be great!