3 Responses for "What week of pregnancy is there a difference between male and female genitalia?"

1. Ashby December 15th, 2008 at 9:34 pm 1

   Some of those 3D/4D places claim they can accurately tell you the baby's sex at 15 weeks on. Most doctors won't give you an ultrasound until approximately 20 weeks and can usually tell the sex of the baby at that time.
   References :

2. lunar_magick123 December 15th, 2008 at 10:01 pm 2

   The external genitalia usually differentiates at week 12-13, but you can't get close enough to get a good look with an ultrasound. Usually around 16 weeks it's possible to see it with an ultrasound. It's most accurate at about 20 weeks though. Good Luck!
   References :

3. Haven December 15th, 2008 at 10:33 pm 3

   Week Eleven
   Nearly all structures and organs are formed and beginning to function.
   Fingers and toes have separated - Take a glimpse at how incredibly precious your child's tiny feet are at this point.
   Hair and nails begin to grow
   The genitals begin to take on the proper gender characteristics - It will be just a few more weeks before your ultrasound can show if you are having a boy or a girl! Have you been dreaming of pink or blue?
   Amniotic fluid begins to accumulate as the kidneys begin to function - This fluid, consisting primarily of water, helps provide a cushion for your baby while she's nestled within your womb.
   The muscles in the intestinal walls begin to practice contractions that digest food.
   Your baby is about 1.61 inches (4.1 cm) long and weighs 0.25 ounce (7gm).
   References :
   http://www.pregnancy.org/pregnancy/fetaldevelopment1.php