Since ultrasound is the most common way to find out if your baby is a girl or boy
, you may want to know how it's done. There are many factors that go into play when trying to decide if baby is a girl or boy
via ultrasound. One of the biggest factors is the "age" of the baby at the time of the ultrasound. Other factors include: the machine, the ultrasound tech, your body and the baby's position.