The only craving as such that I remember having with my daughter when I was pregnant towards the end just over 5 years ago, was these Asda chicken stir fry things.
They were beside all the veggies and usual noodles and stir fry but came in a ready to make pack of veg with chicken, and noodles on the other side and a sachet of some sort of sauce.
I was so addicted I would buy them 3 or 4 at a time and if I couldn't have one for some reason I would have a big huff about it
Just as well they waited till AFTER I had her to discontinue them :P Or I don't know what I would have done
With my son just last year before he was born I had a thing about the smell of petrol and road tar! The roads were being redone outside my house and I was in heaven