Sharna Burgess’ pregnancy was a “surprise”. The ‘Dancing With the Stars’ professional recently revealed she is expecting her first child with partner Brian Austin Green and she’s now admitted it came as a shock because she was still taking birth control pills. Asked if the pregnancy was a surprise, she admitted: “Ahhhh yes. Yes it was. I was on birth control.” But the 36-year-old dancer confirmed she and her 48-year-old partner – who already has Noah, nine, Bodhi, eight, and Journey, five, with Megan Fox, as well as Kassius, 19, with Vanessa Marcil – had been intending to “try” for a baby late…