Implantation bleeding 12dpo?

Amanda • Baby girl 💕: 9/2016, 👼 10/2019

So yesterday afternoon I wiped and had small amount of pink (12dpo- 2days before period), also a LOT of lower back pain. I just chocked it up to my period starting, and another month of TTC.

Every time after that I just had teeny barely there brown blood but only seen with effort though.

Has anyone had this and gotten BFP? I’m pretty sure it’s my period starting but trying to be hopeful. Last time I tested was FMU on 11dpo and it was BFN.

Thanks!