Is it likely to have implantation bleeding just 6 days after exposure to a penis? No penetration or ejaculation took place

Here are some ... The Q is unclear as it might imply as to implantation - IUD? If so, the duration of post-IUD bleeding /spotting may widely vary, but okay as long as being slowly lighting up and you're comfortable. No penetration / ejaculation means no risk to conceive. However, nothing is perfect with no exception for sex love game. In doubt, do HPT especially soon after missing the regularly expected period...