Yes, it is possible to determine the gender of your unborn baby at 12 weeks of pregnancy through various methods. One common method is through a blood test called non-invasive prenatal testing (NIPT), which analyzes fetal DNA in the mother's blood. This test can accurately detect the presence of Y chromosomes, indicating a male fetus. Another option is an ultrasound scan, although it may be less reliable at this early stage. The accuracy of determining the gender depends on several factors such as the equipment used and the position of the fetus during the scan. It's important to note that these methods are not always 100% accurate, so there is still a small chance of misidentification. If knowing your baby's gender is important to you, consult with your healthcare provider for guidance on which method would be best for you.