By Phoebe Tonks & Mia O’Hare A Strictly Come Dancing star, 50, secretly welcomed their third baby without anyone noticing. When it comes to famous people having babies, lots of them like to tell everyone about their happy news. But one Strictly Come Dancing star decided to keep things very quiet as they secretly welcomed a new baby without fans even knowing. Welsh runner, Iwan Thomas, 50, who was on the show in 2015 with his dance partner Ola Jordan, has now told everyone that he has a new baby boy with his long-term girlfriend. His partner, who has kept her name out of the spotlight, had gave…