How soon
A woman can have an ultrasound to determine the baby's sex as early as 15 weeks. However, an ultrasound is not 100% accurate - the only way to be 100% accurate is to have an amniocentesis, which is a risky procedure that a doctor won't perform just to determine the baby's sex.
Is there any signs on an ultrasound scane to show the sex of baby
No, this isn't accurate. The best way to determine the sex of your baby is by having a ultrasound from 16 weeks.
The 20 week ultrasound will determine if the baby is developing normally. The baby's size and the position of the umbilical cord will show. It is also possible to find out the baby's sex at 20 weeks.
It is not possible to determine the sex by ultrasound until about 19 weeks along. If you do an amniocentesis, you can normally find out around 12 weeks.
Pretty good. Early in pregnancy the average heart rate is 163. In later pregnancy between 110 and 150 is normal but it can still rise and fall with exercise.
The sex of your baby can be determined by ultrasound at 16 weeks. Doctors will usually do an ultrasound at 20 weeks.
The ultrasound test is the most accurate test used to determine the gender of a baby.
At the first ultrasound
In India there was (and is) a great desire to have sons. Ultrasound imaging used to determine the sex of an unborn baby was therefore a cause for the abortion of many female babies. Therefore the use of ultrasounds to determine sex was outlawed.
Your doctor will be able to tell you what the sex of your baby will be by the 15-16th week of pregnancy. By this time, your baby reproductive organs will be visible during the ultrasound.
By getting an ultrasound from a doctor.