Is it true that if a woman craves for sour and sweet foods it means that her baby is a girl?

50% right: There are plenty of myths about predicting a babies sex and heart rate is one of them.A string test, how they are positioned, cravings,etc, are still all myths. They are right 50% of the time which is better than your lottery numbers, people seem to selectively forget the 50% of time they are wrong.An ultrasound will give reasonably accurate information in late pregnancy.