DD - we were told by the nurse at the IVF unit, who rushed into the room with the news. It was the sixth attempt, so she knew us pretty well. One of the happiest moments of both our lives.
DS (who is on the way and whom we conceived naturally): 7am, a week after my due date for AF. I had waited a week because I really couldn't believe it, even though I have a regular cycle and had a several pregnancy symptoms. We were both pretty shocked...