Gigi Hadid is opening up about her pregnancy experience.After releasing a series of artistic black-and-white pregnancy portraits earlier this week, the supermodel answered a fan's query about her modelling experience on Twitter."How was shooting with your baby bump for the first time?" the user asked."I loved it, I knew what I wanted from the pics and Gab and L&I really made it happen for me," she said, referring to photography duo Luigi and Iango, who shot the photos.