Implantation bleeding at 11 dpo??

Megan

I ovulated late this cycle so I am 11 dpo but CD 34. The app predicts AF to come on Wednesday. Is it possible to have implantation bleeding at this point or is AF coming early? I saw a tiny smear of pink only when I wiped…didn’t have my phone with me so no picture. Just wondering if 11 dpo is too late for implantation bleeding?