Can you have implantation bleeding at 16 dpo?

I'm not sure when this question was posted, so I might be a little late answering..but I think yes. I am having very light spotting without cramps, and am 16dpo. From what I've read this is normal during pregnancy, and especially during early pregnancy. However, most of the posts I've read say no because most likely the lastest implation will occur is 12dpo. But the reason why I think implation spotting is possible on 16dpo, is because It can take anywhere from an hour-4days for the entire implantation process to occur. Most people don't think about that, and would assume that it's not possible, but I disagree. Idk if it's wishful thinking, but anything is possible. I hope this answer is helpful..even with that knowledge I have still been asking the same question :/