By Katie Wilson Pixie Lott looked every inch the proud mama as she shared the cutest snaps with baby Albert while celebrating her 33rd birthday. The Mama Do singer welcomed Albert, who is also known as Bertie, in October, with her 35-year-old model husband Oliver Cheshire. At his christening a month later she revealed his name and said: “Albert Charles Cheshire. It has already been the most amazing time of our lives with you little Bertie and we feel so incredibly lucky you chose us to be your m and d xx.” To celebrate her first birthday as a mother, Pixie and her extended family headed to The…