Cravings.

With my first pregnancy I craved sweets and sugary foods; also I had a girl my first pregnancy. This pregnancy I don't really crave sugar, I actually ate a little chocolate and got sick; I don't really throw up but I get a little nauseated and have acid (I'd say it's acid) my stomach doesn't settle very well. 
I know it's an old wives tale and it might not consider or be true about what you crave specifies a certain gender and every pregnancy is different. 
Could this be a boy? Possibly?