I will be away next week and, therefore, my wife is unable to move on her own because she is pregnant. Move is a general term for the process of packing and physically moving household items from one house to another. This would be difficult for a pregnant woman to do by herself.
Resettling refers to unpacking, decorating, and becoming accustomed to living in your new house.
Packing refers to putting your belongings in boxes, which is doable for a pregnant woman as long as she isn't lifting heavy things.