This seems to be a very old and somehow RECYCLED question that never got out of the system. But, I'm assuming since we are in the month of December (nearly January) that you are either pregnant from the past summer or you are not pregnant, meaning that you never got pregnant from that summer night in August when you and your husband had relations. But here's the point I wanted to make reading this question. An ejacuate inside of a woman DOES NOTHING to delay her period. However, ANXIETY/FEAR and other similar emotions in a woman DEFINITELY can not only DELAY but TAKE AWAY periods from women....sometimes for months at a time. Hope all is well in whichever direction things took their turn. If you would ever like to write questions specifically to my attention feel free to land up on my page and write to me: bit.ly/drdariushsaghafi