The fetal gender can be known as early as 10 weeks of pregnancy (8 weeks post conception), starting from the first day of your last menstrual period. This is one of the fastest methods available for determining the sex of your baby. You will need to have a good idea of when you conceived; read more about how to calculate the date of conception to understand more.
You can also use our pregnancy calculator to help you calculate your dates. We always recommend consulting your gynaecologist or family doctor should you be unsure.