Should I Be Concerned About White Discharge, Then Light Pinkish-red, And Now Brown Bleeding When My Period Is Late?

Hi there. I ve not had my period Im 8 days late. My cycle length is 28 days but my last period was 04/15/2023 and it lasted 5 days so 04/19/2023 was the last day. I haven t had one since. I ve taken pg test negative.. today I been losing white discharge and did today but then later on I lost a white discharge mixed with a little light pinkish red color and then was fine now I m bleeding brown and haven t had period symptoms? What s this mean should I worry?