(TMI) Implantation or period?

š‘…š‘œš“ˆš‘’š“Ž ā€¢ š˜”š˜°š˜®š˜®š˜ŗ š˜°š˜§ 2 š˜Øš˜Ŗš˜³š˜­š˜“ šŸ‘©šŸ½šŸ‘§šŸ½šŸ’—

According to GLOW my period was due yesterday and today I randomly put a tampon in took it out when I went to the bathroom and saw brownish (dry blood)? On the tampon.

Took test early this morning and all negative šŸ˜©

Iā€™m so lost now šŸ’” any ideas of this being implantation bleeding or period coming?