Ultrasound. You can typically find out the sex of your baby via ultrasound. This will be performed between 18 and 20 weeks. The ultrasonographer will look at your babys image on the screen and examine the genitals for different markers that suggest boy or girl.

When can I know if its a boy or girl?

By 18 weeks, an ultrasound technician will most likely be able to identify the sex – if the baby is in a position that allows the genitals to be seen. Otherwise, you may be able to find out if you have another ultrasound later in your pregnancy.