The fastest way to determine your baby's gender is through a prenatal ultrasound.
Ultrasound exams use sound waves to create images of your baby inside the womb. These images can often reveal the baby's gender as early as 12 weeks of pregnancy.
However, it's important to note that ultrasound isn't always completely accurate, and some babies might be positioned in a way that makes it difficult to determine their gender.
Other methods, like amniocentesis or chorionic villus sampling (CVS), can also reveal your baby's gender but are primarily used for genetic testing and carry a higher risk of complications.
Ultimately, the decision of whether or not to find out your baby's gender is a personal one.