Why do preg. women crave pickles?

Answer 1

My Opinion up there is correct.
It is referred to as Pica (or cribbing in the equine world). It just means you have some type of mineral deficiency, ie calcium, tin, boran, copper, zinc, etc.

Answer 2

Not all women crave pickles. I never did.

But to answer your question, its a condition called Pica. Its where the body is trying to get you to eat something to provide a nutrient or mineral that it is lacking. It is not uncommon and usually quite harmless.