Early ultrasounds aren't the most accurate gauge of whether you're expecting a boy or girl. "The earliest in pregnancy that the fetus's sex can be determined by ultrasound is about 12 weeks ...

While this article uses the terms "gender" and "boy" vs. "girl," it's important to note ... and this 'nub' can often be seen on an ultrasound,” says Ila Dayananda, MD, MPH, a board-certified ...