Mariah Carey has admitted she felt “extremely uncomfortable” during an interview on The Ellen DeGeneres Show when she was pushed into revealing a pregnancy she later miscarried.The singer appeared on the US talk show - which has just been axed in the wake of toxic workplace claims - in 2008 and was pressured to drink champagne to toast rumours she was expecting a child with then-husband Nick Cannon.Carey recalled to Vulture of the interview: “I was extremely uncomfortable with that moment is all