There is nothing that can be considered "rational thinking" for pregnant women with cravings...LOL
I can state with a great deal of certainty, that in 1975, there was no place on the Island of Oahu where one could buy a fresh apple at 2:00 am on a Monday morning.
If I didn't have my pot of coffee (decaff of course) every day while I was pregnant, I went nuts! That craving lasted most of my pregnancy. But when I got that craving for coffee, even in the middle of the night, and I couldn't have any, oh my poor gram (we were roomies)!