What is the probability of having twin babies (a boy and a girl) during pregnancy?

The probability of conceiving boy-girl twins is relatively low and varies depending on several factors. Generally, the likelihood of having boy-girl twins ranges from about 0.1% to 0.5%. This primarily depends on the woman's ovulation pattern and the way fertilized eggs split. Boy-girl twins, also known as dizygotic (fraternal) twins, occur only when two separate eggs are fertilized simultaneously and successfully implant in the uterus. Since women typically release just one egg per menstrual cycle, and because both eggs must be fertilized successfully, the chance of having boy-girl twins is relatively rare. Additionally, factors such as family genetics, ethnic background, and the use of fertility medications may also influence the likelihood of conceiving dizygotic twins. If you have any concerns, please consult a healthcare professional.