PHOTO: Vivien Killilea/SinfulColors/Getty Images Friday, September 22, 2017 shall henceforth and forevermore be known as the day the world learned Kylie Jenner may be pregnant. Since then, everyone’s been waiting with bated breath for something, anything remotely resembling deets. And deets ye shall receive, courtesy of one enterprising media personality named Ryan Seacrest. Ryan, who…