There is no relationship between liking Coke and the sex of the fetus.
Generally speaking, the sex of the fetus is already decided when the sperm and the egg are combined, and the chances of a boy and a girl are 50/50, and will not be affected by external factors. If a pregnant woman usually likes to drink cola often, it just represents the reason of personal preference and has no relationship with the sex of the fetus.
On the clinical side, whether the pregnancy is male or female cannot be judged purely by the taste of the pregnant woman, and it has nothing to do with liking to drink Coke, which is an unscientific statement.
In addition, any non-medical behavior of fetal sex determination is prohibited, and it is recommended that pregnant women should be relaxed and undergo regular maternity checkups in order to understand the development of the fetus.