Inplantation bleeding TMI

Does anyone have experiencewith implantation   bleeding and/or what it looks like? I am 11 dpo and got this today. The bottom picture is from yesterday (10dpo). There is a brown spot in the middle of the picture. Both were after wiping. No spotting in underwear or anywhere else at all. Took a pt today and it was a bfn, but I am wondering if inplantation just occurred yesterday or today. Anyone have thoughts? Thank you!