It is all in the hormones…It makes a vegetarian crave steak … Just as women have cravings at various stages of their menstrual cycle due to hormones, the same thing happens during pregnancy. Some says that there is also a wisdom of the body. (Believe me .. I can not take this.. in my pregnancy I was mad for sweets and in forth month developed pregnancy related blood sugar…). A craving for milk might mean you need calcium; a craving for fruit may signal a need for vitamin C. In fact, fruit, milk, and milk products (as well as chocolate and salty snacks) are the most common pregnancy cravings.