According to The Bump,
And, for the dad to be, here's the man's guide description for week 12:
I am pregnant.com states:
Because most of the structures are already formed at this point, few will be formed after this time. The structures will continue to grow and develop throughout the remainder of your pregnancy. Your baby's skeletal system now has centers if bone formation in most of the bones. The digestive system is capable of making contractions that push food through the bowels and it is also able to absorb sugar. The pituitary gland beginning to make hormones. You will probably be able to hear your baby's heartbeat with a Doppler at this time!
Your baby develops reflexes and the skin is very sensitive. The brain is fully formed, and the child can feel pain. the baby may even suck his thumb. The eyelids now cover the eyes, and will remain shut until the seventh month to protect the delicate optical nerve fibers.
We have our 3rd ultrasound this week. This is for the NT scan, which will test for Down's Syndrome and a couple other genetic disorders. Then, no more scanning till week 20, I think, for the gender :-)