Yes, it is possible to determine the sex of your baby during the first trimester of pregnancy. There are two main methods for determining fetal sex at this stage: ultrasound and non-invasive prenatal testing (NIPT).
Ultrasound can be done as early as 12 weeks gestation, although accuracy increases after 14 weeks. During an ultrasound, a technician will use sound waves to create an image of your baby. By examining certain markers such as genital tubercle angle or nub theory, they may be able to determine if you are having a boy or a girl.
NIPT is a blood test that analyzes fetal DNA in your bloodstream. It can detect chromosomal abnormalities and also determine fetal sex with high accuracy. NIPT can typically be done as early as 10 weeks gestation.
It's important to note that while these methods are generally accurate, there is still a small chance for error. If you're eager to find out your baby's sex, talk to your healthcare provider about which option is best for you and when it can be performed.