Blake and Gwen are engaged…Tyler Farr and his wife are having a baby girl… Blake Shelton and Gwen Stefani are finally engaged!! Gwen made the post Instagram official yesterday.Blake also posted the same picture on his page, writing, "Hey @gwenstefani thanks for saving my 2020... And the rest of my life.. I love you. I heard a YES!" Tyler Farr and his wife, Hannah, are expecting a baby girl in March. They tell People, "In one of the most stressful and challenging years of our lives, words…