A pioneering Latino rocker of the '50s, Richie Valens had several big hits -- including La Bamba, Donna, and Come on, Let's Go -- before dying tragically in a plane crash with Buddy Holly. Read Full Biography.
This is one of the most common questions I receive from parents-to-be. Most patients undergo an ultrasound at around 18-20 weeks (about four and a half to five months). Normally, at this stage of pregnancy we can determine the baby's sex, but not always. The position of the baby during the ultrasound is the most important aspect in our ability to tell the baby's sex, andthere's no way to influence that. For obvious reasons, it's usually easier to see if the baby is a boy.
How a Babyâs XX Gender or XY Gender is Determined. Females have an XX pair of sex chromosomes, and males, an XY pair. A babyâs gender is determined by the sperm cell that fertilizes a womanâs egg. Sperm carry one sex chromosome, either a Y (male) or X (female).