JessicaLee37:It is called Pica and I think it is usually due to a mineral deficiency (such as iron) or a mental disorder. If she is pregnant it would make sense that she is suffering from it since many pregnant women are iron deficient.
Exactly this! It is quite wild but it does happen. When I was pregnant I remember each pregnancy the Dr. would ask if you are craving clay, etc. It'd be on a questionnaire.
It also happens in young children. They'll crave weird/odd things.