Food cravings in pregnancy.

Hey mum's to be congrats, I thought I'd start a discussion about food cravings and if it's a big myth that having a boy or girl can give you certain cravings, I have a 5 year old son and my cravings was a lot different to the ones I am having now .. Does that mean I'm having a girl? How about you, comment and we can all see the differences tia