Tmi is this implantation bleeding?

I'm currently at 12 dpo still testing negative. I'm supposed to have my period in 2 or 3 days. The first picture with light pink i got at 10 dpo and then I didn't have anything through out the day. Yesterday i didn't really see anything. Second picture is today at 12dpo as i woke up and it looks brown similar to when I'm almost done with a period. Is this implantation bleeding? Trying to conceive for the past 11 months. Thanks foe your help in advance.