Not all women crave certain foodstuffs when they are pregnant. So don't feel that you are unusual if your dietary intake doesn't alter much when pregnant. It is common for people to say that a craving is the growing baby's way of telling the mother what vitamins and minerals are needed. However, there is no proof that this is the case. Most scientists explain pregnancy cravings either because of the hormonal changes that are going on or because of psychological reasons.