Implantation Bleeding?

Hi there! Just wondering if anyone else experienced implantation bleeding?y cycle was due 11/2, but I began having unusual spotting (brownish) on 11/28. I have been feeling off and having extreme fatigue. No tenderness or other symptoms however. I took a Early Response pregnancy test on 11/28 which was clearly negative. The flow is very light (like the last days of a cycle)...unlike anything I have had in years. My cycle isn't always consistent...anyone else experience this prior to a pregnancy? Hoping and praying, but trying to have peace no matter the outcome. Thanks in advance 💛