At just 4 and a half months pregnant, the otherwise petite Jessica Simpson has sources wondering if she’s gaining weight too quickly and headed in a dangerous direction. Already a mom of 2, Jessica is expecting a little girl to join the growing clan – this makes her no stranger to pregnancy and cravings. Reportedly she’s gained a total of 40lbs already and her fans and close friends are concerned. The former Weight Watchers spokeswoman has a lot to live up to but is not shy at all about her…