Late period but negative

Raquel • Married.Mom 👦🏻 10/15/14. 👧🏻 2/12/19. 👧🏻 12/21/20 trying for baby #4

I’m now 8 days late on my cycle. I’m never late! I took 3 tests days before my period all negative. I started spotting yesterday a little pink but barely any at all with some brown. What does the mean? Could I still be pregnant? I’m so confused... with my daughter I tested before my period and got positive. Anyone else experience this?