(TMI) Implantation or period?

𝑅𝑜𝓈𝑒𝓎 • 𝘔𝘰𝘮𝘮𝘺 𝘰𝘧 2 𝘨𝘪𝘳𝘭𝘴 👩🏽👧🏽💗

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 😩

I’m so lost now 💔 any ideas of this being implantation bleeding or period coming?