Dragon-phenix babies are twins formed by the fertilization of two separate eggs.
Normally, women produce one egg per month, but sometimes for some reason two eggs are released at the same time, both of which contain the X chromosome. The male produces sperm, which contain the X and Y chromosomes.
When the sperm combines with the two eggs of the woman, two fertilized eggs are produced, which develop into an embryo with XX chromosome and an embryo with XY chromosome, i.e., a girl and a boy, i.e., Dragon-Phoenix Foetus (Dragon-Phoenix Foetus).
The chances of having a boy and a girl are very small, usually around 1 in 1,000 to 5 in 1,000. The chances of having a boy and a girl are hereditary, and people with a family history of having a boy and a girl are more likely to have a boy and a girl than the general population.
During pregnancy, it is important to have regular checkups to monitor the growth and development of the fetus, and to consult a doctor if you feel unwell.