Sometimes it can be detected as early as 12 weeks... but It's not common. Most of the time the ultrasound tech can tell at the mid-way scan between 18-20 weeks answer i found my sons sex out when he was 18 weeks and i kid you not, the doctors said he had the biggest penis they'd ever seen :D
Babies are born.
If Allah didn't permit sex, how would new (babies) Muslims come along?
Around week 20.
There is no way to determine the sex of an unborn child by the fetal heart rate that has been proven.
18 weeks, if your baby is cooperative
18-20 weeks
Roughly 20 weeks pregnant
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.
SEX
If you have sex you will
Autosomes do not determine the sex of the individual. Sex chromosomes do determine the sex of the individual.
Standing on your head. These are all fairy stories. Current research suggests that the position does not determine the sex of the baby and neither does it guarantee a baby.