What is this?

ol

Hey ladies, so my expected period was last saturday and i think i got my period on friday. it lasted five days like usual, the second picture is the fifth day and seems to be more brown and light pink blood then pure red. the first picture is from today, and my period usually doesn’t like this long. i had sex on the fifteenth, (last friday) would this be implantation bleeding or what do you think it is?...