Pregnant singer Jennifer Lopez is "freaked out" by her expanding stomach. The 39-year-old is five months pregnant with husband March Anthony's baby. But Lopez says the pregnancy is taking its toll on her figure. She says, "I've put on 42 pounds (19 kilograms) and my belly's all podgy. I don't know what's going on. "It's amazing, but I'm a bit freaked out by it."