The fetal heart rate can vary during pregnancy and is not a reliable indicator of the baby's gender. At around 11 weeks, a normal fetal heart rate can range from 120 to 180 beats per minute. While some people believe that higher heart rates may indicate a girl and lower heart rates may indicate a boy, there is no scientific evidence to support this claim. The only accurate way to determine the gender of your baby is through medical tests such as ultrasound or genetic testing. It's important to remember that the fetal heart rate can fluctuate throughout pregnancy and should not be used as a sole predictor of the baby's gender.