Week 6

• Your baby is now about the size of an apple seed. That's about 0.08 to 0.16 inches (2 to 4mm) from crown to rump.
• It has formed a distinct head with the first stages of eyes and ears.
• The spinal column and cord are formed.
• Buds that will grow limbs have also formed.
• The heart is starting to beat and at this stage its beating may even be detected by sensitive ultrasound equipment, though, it's still very early.
• The kidneys, liver and nerve cells have also begun to develop.
• Ten dental buds are growing in the jaws.
• Blood circulation has begun and primitive red blood cells circulate.
• The neural tube has closed over along your baby's spine.
• The optic vesicles, which resemble tiny discs of pigment set in cups along the sides of your baby's head will develop into your baby's eyes.
• A distinct tail is still present.
• The body is shaped like the letter "C".