How many weeks can the sex of the baby can be determind?

The sex of a baby can typically be determined through an ultrasound around 18 to 20 weeks of pregnancy. However, some tests, such as non-invasive prenatal testing (NIPT), can reveal the baby's sex as early as 10 weeks into the pregnancy. It's important to note that the accuracy of determining sex can vary based on the method used and the positioning of the baby during the ultrasound.