I had sex with my boyfriend on the 20,24,and 26 is it possible to have I'm plantaion bleeding as early as that?

Five days would be on the early side, as it usually takes a few days for the egg to travel to the uterus before implantation can begin, which can take another few days to complete, but it's possible you became pregnant from one of the earlier encounters. Most women never notice implantation bleeding and it usually is just a bit of spotting for a day or two if they do.

Spotting or bleeding, when not associated with your period, can occur for other reasons as well. See what happens when your next period is due and test if need be.