Unwanted confusing pregnancy

Me and my boyfriend broke up and I founded out I'm pragnant , obviously it's unplanned pregnancy . No one knows that I'm pregnant yet but for sure I'm doing an abortuion but I don't know if to tell him That , on one hand he is the father but on the other hand I can't see him , I don't want to see him , especially having his baby in me . Please can someone give me some advice and help