week you can determine gender of baby with ultrasound
Most patients undergo an ultrasound at around 18-20 weeks (about four and a half to five months). Normally, at this stage of pregnancy we can determine the baby's sex, but not always. The position of the baby during the ultrasound is the most important aspect in our ability to tell the baby's sex, andthere's no way to influence that. For obvious reasons, it's usually easier to see if the baby is a boy.