A good home remedy for itching is that old-fashioned original style
Listerine, the stinky kind. You put it on a cotton ball and rub the itchy spots. It's got great natural stuff in it like eucalyptus, and alcohol to keep you from getting bacteria in where you scratch.
Regarding itchiness in pregnancy, it is pretty common. A friend was on meds for morning sickness, and turned out, they made her itch. But I know it happens naturally too.