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The above answer is actually incorrect, Yes you can tell the sex from 12 weeks onwards if the sonographer has researched and knows how to use the nub theory which is basically the angle of the dangle, every baby has a nub that does look like a willy up until around the 16th week but it is the angle of the nub which allows you to determine gender for boys the nub has to be pointing up on more than a 30 degree angle and girls lower, the girls nub tends to be flat and in line with the spine there is lots of information on the 'nub theory' which claims to be 95% accurate at 12/13 weeks and in my own personal experience having two little girls and seeing there nubs both me and sonographer agreed they were girls hope this helps :)

2010-07-18 15:49:20
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Q: Can you determine the baby's sex at the 13 week scan?
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Related Questions

Can you determine a babys sex by the heartbeat?


What does blue and pink line mean after the ultrasound Is it possible for the ultrasound to tell your baby gender?

I am not sure what you are meaning, but no I think not, you will find out the babys sex only when you are 18 weeks +, if you are living in the UK then you will find out at your 20 week scan (normality scan).

how are babys made ?


What determines babys sex?

The father determines the sex, if they pass on an Y chromosome or not.

When will you be able to tell the babys sex?

at 18 weeks

How can you tell what the babys sex is?

look at its willy or fanny

What are the difference of autosome and sex chromosomes?

Autosomes do not determine the sex of the individual. Sex chromosomes do determine the sex of the individual.

Can children have babys?

Only if they have started puberty and if they have sex can they become pregnant.

What chromosomes in a karyotype determine the sex of a unborn baby?

sex chromosomes determine the sex of an unborn baby.

How do scientist determine the sex?

Scientists do not determine the sex of a fetus. Science does, but scientists do not.

Does color determine sex of a duck?

No the color of the duck does not determine the sex of the duck.

How do you tell the sex of a 13 week old foetus by looking at scan pictures?

Um...speaking from experience have to wait until week 21 to find out the sex of the with your OBGYN...(your baby doc) and he or she can help you with any further questions you may have....good luck and happy trails

How do moms have babys?

They have sex with there boyfriend or male spouse! He releases his sperm into her vagina.

How do you determine the sex in wild ungulates?

Samples of DNA can be taken from feces to determine the sex.

What is the term for chromosomes that do not determine sex?

Chromosomes which do not determine sex are called autosomes.

What are the human chromosomes that determine an individuals sex called?

The X chromosomes and Y chromosomes determine sex.or sex chromosomes

Is there a way to make sex safe?

yes tere is all you have to do is put a condom on before you have sex with a person please and you wil have fun sex and NO babys yeeeeeeeeeeeeeees

Why do girls have babys?

because they have really horney sex and then the boy cums in the girl and they has a baby!

How did the towns people in the middle ages make their living?

by havin sex and making babys

Year when ultra sound was used to determine babys sex?

I had my youngest child in early 1986. The doctor had an ultrasound machine, which wasnt like they are today, and told me he believed the baby was a boy. But that was only a 75% guess. I was about 23 weeks then. He even sent his nurse from the room before he would say. No pictures or dvd's back then. I never had any scan with my previous pregnancies and they were 1977 and 1979.

Why do only girls make babys and not boys?

Girls only make babys because of their orgainism they have. If boys had babys their will be more of them or an equall amount of girls an boys. Boys an girls come from different sex .Which means they have two different body parts or privite areas. Only tran sex man or women would be able too have babys only if the man turns into a women, or if the women turns into a man.

What happens if you dont separate the newborn hamsters from the mother after 28 days?

They should be fully weaned by about 21 day's, and the babys will be ready for separating from mum at around 28 days. They should then be separated and placed into single sex cages; here they can stay together for another 2 week. They should be fully weaned by about 21 day's, and the babys will be ready for separating from mum at around 28 days. They should then be separated and placed into single sex cages; here they can stay together for another 2 week.

When can you determine the exact sex of your fetus?

What is an inexact sex?

What carries the genes that determine sex?

the answer is sex chromosomes

What are the funtions of sex chromosomes?

Determine the sex of the fetus.