“Austin Powers” funnyman Mike Myers is to become a dad for the first time at age 47. His new wife, Kelly Tisdale, is expecting and in her second trimester, Page Six has learned. Tisdale, a co-founder of Lower East Side hipster cafe Teany, was seen with friends in New York this week looking glowing and showing off a neat bump. Myers’ rep told us, “I can confirm they are expecting a child.” We recently revealed that the famously private “International Man of Mystery” star secretly married Tisdale here last fall after dating for four years. “They were married in a private ceremony and celebrated with family and friends,” his rep confirmed at the time. They got together shortly after Myers, a kids’ favorite for voicing the “Shrek” character, split from his first wife, comedy writer and actress Robin Ruzan, after a 12-year marriage.