PMS cravings is more of what your body/mind needs, like sugars (helps with mind) or iron (you're losing blood)Pregnancy cravings, in my opinion, are unexplainable. Haha. They can be anything from grapefruit to pickle juice, it depends on the person, but Its almost as strong as- even more strong as in some cases- PMS cravings. You only have this one for 9 months.